PYQ Bank
Previous year board exam questions, filtered by subject and year.
State and explain parallax method for measuring large distances.
Derive the kinematic equation v² = u² + 2as using calculus.
Derive an expression for centripetal acceleration.
State the laws of thermodynamics. Explain Carnot engine with a neat diagram.
Explain the mole concept. Calculate the number of moles in 20g of CaCO₃.
Write the electronic configuration of Cu and Cr. Explain the anomaly.
State Hess's law. Calculate enthalpy change for a reaction using bond energies.
Explain the concept of pH. Calculate the pH of 0.001M HCl solution.
If A = {1,2,3}, B = {2,3,4}, find A∪B, A∩B, A-B. Verify n(A∪B) = n(A) + n(B) - n(A∩B).
Find the domain and range of f(x) = √(x²-4).
Find the derivative of x³+2x²-5x+7 from first principles.
How many 4-letter words can be formed using the letters of 'MATHEMATICS'?
State the cell theory. Differentiate between prokaryotic and eukaryotic cells.
Describe the structure of a dicotyledonous leaf.
Explain the mechanism of breathing in humans.
Explain the reflex arc with a neat diagram.
Derive an expression for moment of inertia of a uniform rod about an axis passing through its centre and perpendicular to its length.
State Bernoulli's theorem and derive Bernoulli's equation for an ideal fluid.
Derive the expression for pressure exerted by an ideal gas using kinetic theory.
State and explain the first law of thermodynamics. Derive the relation between Cp and Cv.
Derive an expression for the time period of a simple pendulum. On what factors does it depend?
Explain the formation of stationary waves in a stretched string. Show that nodes and antinodes are formed alternately.
Describe Young's double slit experiment. Derive the expression for fringe width.
State Gauss's theorem in electrostatics. Using it, derive an expression for electric field due to an infinitely long charged wire.
State Kirchhoff's laws. Using them, determine the current in each branch of a given balanced Wheatstone bridge.
State Biot-Savart law. Use it to derive the magnetic field at the centre of a circular loop carrying current.
Distinguish between diamagnetic, paramagnetic and ferromagnetic materials with suitable examples.
State Faraday's laws of electromagnetic induction and Lenz's law. Derive the expression for motional emf induced in a conductor moving in a uniform magnetic field.
Derive the expression for impedance of a series LCR circuit. Explain the condition for resonance.
Explain the photoelectric effect. Derive Einstein's photoelectric equation and state its physical significance.
State Bohr's postulates. Derive the expression for radius of nth orbit and energy of electron in hydrogen atom.
Explain the working of a PN junction diode in forward and reverse bias. Draw its characteristic curves.
Distinguish between crystalline and amorphous solids with suitable examples.
State Raoult's law for volatile liquids. Explain positive and negative deviations from Raoult's law with examples.
Define pH and pOH. Derive the relation pH + pOH = 14 at 298 K.
State the first and second laws of thermodynamics. Define Gibbs free energy and derive the relation ΔG = ΔH - TΔS.
Explain the construction and working of a Daniell cell with a neat diagram. Write the cell reaction.
Define rate of chemical reaction. Derive the integrated rate equation for a first order reaction.
Explain the trends in physical properties of group 16 elements down the group.
Explain the general characteristics of transition elements. Why do they exhibit variable oxidation states?
Define coordination compound. Explain the terms: ligand, coordination number, coordination sphere with examples.
Explain the SN₁ and SN₂ mechanisms of nucleophilic substitution reactions with suitable examples.
Explain the methods of preparation of alcohols from alkenes and Grignard reagents.
Distinguish between aldehydes and ketones using Tollens' reagent and Fehling's solution tests.
Classify amines with examples. Explain the methods of preparation of primary amines.
Explain the classification of carbohydrates with examples. What are reducing sugars?
Classify polymers based on source, structure and type of polymerization.
Explain the classification of drugs based on pharmacological action. Give one example of each class.
Explain the different modes of asexual reproduction in plants with examples.
Draw a labeled diagram of the male reproductive system in humans.
State Mendel's laws of inheritance. Explain monohybrid cross with a checkerboard.
Describe the structure of DNA as proposed by Watson and Crick. Explain its salient features.
Explain the Miller-Urey experiment. What did it demonstrate about the origin of life?
Explain the mechanism of water absorption by roots. Differentiate between apoplast and symplast pathways.
Explain the phases of plant growth. Draw a typical sigmoid growth curve and label its parts.
Explain the mechanism of breathing in humans. What is the role of the diaphragm?
Explain the structure of a neuron. Describe the mechanism of nerve impulse transmission.
Explain the structure of HIV with a diagram. Describe the life cycle of HIV.
Explain the methods of plant breeding for disease resistance.
Explain the steps involved in recombinant DNA technology with a diagram.
Define population. Explain the different population attributes with examples.
Define ecosystem. Explain the structure and function of an ecosystem.
Define biodiversity. Explain the three types of biodiversity with examples.
Construct the truth table for (p ∧ q) → (p ∨ q). Determine whether it is a tautology, contradiction or contingency.
Find the inverse of matrix A = [[2,3],[1,4]] using elementary row transformations.
Prove that sin⁻¹(3/5) + sin⁻¹(8/17) = cos⁻¹(36/85).
Show that the equation 2x² - 5xy + 2y² = 0 represents a pair of lines. Find the angle between them.
If a = 2i - j + k, b = i + 2j - 3k, find the unit vector perpendicular to both a and b.
Find the vector equation of the line passing through (1,2,3) and parallel to the line (x-1)/2 = (y+1)/-3 = (z-2)/4.
A furniture dealer deals in tables and chairs. Solve graphically to maximize profit given constraints on wood and labor.
If y = (sin⁻¹x)², prove that (1 - x²)d²y/dx² - x dy/dx = 2.
Find the equation of tangent and normal to the curve y = x³ - 2x + 1 at the point where x = 1.
Evaluate ∫e^x(sin x + cos x) dx.
Evaluate ∫₀^(π/2) sin²x dx.
Find the order and degree of the differential equation (d²y/dx²)² + (dy/dx)³ = 0. Solve the differential equation dy/dx = e^(x+y).
A random variable X has the following probability distribution. Find the value of k and P(X ≥ 2).
State the conditions for a binomial experiment. If a fair coin is tossed 6 times, find the probability of getting exactly 4 heads.
Explain the concept of internal energy. State the first law of thermodynamics with mathematical form.
Distinguish between longitudinal and transverse waves with examples. State the relation between velocity, frequency and wavelength.
Derive the lens maker's formula for a thin lens.
State Coulomb's law in vector form. Find the force between two charges of +2 μC and -3 μC placed 10 cm apart in air.
State Ohm's law. Derive the expression for the equivalent resistance of three resistors in series.
Define magnetic flux. State Gauss's law of magnetism.
Explain the energy band theory of solids. Distinguish between conductors, insulators and semiconductors.
Define atomic mass unit. Calculate the molecular mass of H₂SO₄ and glucose.
Explain Rutherford's alpha scattering experiment. What conclusions were drawn about the structure of the atom?
Explain the formation of sigma and pi bonds. Differentiate between them.
Define oxidation and reduction in terms of oxidation number. Calculate the oxidation number of S in H₂SO₄ and Cr in K₂Cr₂O₇.
State the periodic law. Explain the trends in atomic radius across a period and down a group.
Explain the classification of organic compounds based on functional groups with examples.
Explain the preparation of methane from Wurtz reaction and decarboxylation.
State the gas laws. Derive the ideal gas equation PV = nRT.
Distinguish between physisorption and chemisorption. Give one example of each.
Explain the types of radioactive decay with examples: alpha, beta and gamma emission.
If A = {x: x is a prime number less than 20} and B = {x: x is a multiple of 3 less than 20}, find A∩B and A∪B. Represent on a Venn diagram.
Check whether the function f: R → R defined by f(x) = 3x - 5 is one-one and onto.
Prove that (sinθ + cosecθ)² + (cosθ + secθ)² = 7 + tan²θ + cot²θ.
Find the distance between the parallel lines 3x - 4y + 7 = 0 and 6x - 8y + 15 = 0.
Find the equation of the circle with centre (2,-3) and radius 5 units.
Evaluate the limit: lim(x→2) (x² - 5x + 6)/(x² - 4).
Find the derivative of tan x with respect to x from first principles.
Evaluate ∫(3x² + 1/x² + √x) dx.
A card is drawn from a well shuffled pack of 52 cards. Find the probability that it is either a king or a red card.
What is the living world? Explain the characteristic features of living organisms.
What is systematics? Differentiate between taxonomy and systematics.
Explain the classification of Kingdom Plantae into divisions with characteristics.
Explain the salient features of phylum Arthropoda with examples.
Explain the structure and function of the endoplasmic reticulum and Golgi apparatus.
Define carbohydrates. Classify them with examples.
Differentiate between mitosis and meiosis with suitable diagrams.
Classify plant tissues. Explain the structure and function of meristematic tissues.
Explain the light reaction of photosynthesis. Describe the Z-scheme of electron transport.
Explain the process of glycolysis with a flowchart.
A ball is thrown vertically upwards with velocity 20 m/s. Find maximum height and time of flight.
State and explain Huygens' principle. Use it to prove laws of reflection.
Explain periodic trends in ionization enthalpy across a period and down a group.
Distinguish between electrophiles and nucleophiles with examples.
Prove that sin²θ + cos²θ = 1. Express sin3θ in terms of sinθ.
Describe the stages of mitosis with the help of diagrams.
What are hormones? Explain the feedback mechanism of hormone regulation.
A grindstone of radius 0.5 m rotates with angular speed 40 rad/s. A tool is pressed against it with a force such that the torque due to friction is 10 Nm. Find the time taken for the grindstone to stop if its moment of inertia is 20 kg m².
A capillary tube of internal radius 0.5 mm is dipped vertically in water. If the surface tension of water is 0.072 N/m and angle of contact is 0°, calculate the height to which water rises in the tube.
Calculate the root mean square speed of oxygen molecules at 27°C. Molecular weight of oxygen is 32 g/mol.
Explain the Carnot cycle with a neat P-V diagram. Obtain the expression for efficiency of a Carnot engine.
A particle performs SHM with amplitude 5 cm and period 2 s. Find its velocity and acceleration when the displacement is 3 cm.
What are beats? Derive an expression for beat frequency produced by two sound waves of slightly different frequencies.
What is diffraction of light? Explain the Fraunhofer diffraction pattern due to a single slit.
Three point charges +2 μC, -3 μC and +4 μC are placed at the vertices of an equilateral triangle of side 0.2 m. Find the net force acting on the +4 μC charge.
Derive the expression for the equivalent resistance of three resistors connected in parallel.
A long solenoid has 500 turns per metre and carries a current of 2 A. Calculate the magnetic field inside the solenoid.
Define magnetic susceptibility and magnetic permeability. Derive the relation between relative permeability and susceptibility.
A circular coil of radius 10 cm and 50 turns is placed in a magnetic field of 0.5 T perpendicular to its plane. If the field is reduced to zero in 0.1 s, find the induced emf.
A series LCR circuit has R = 10 Ω, L = 0.1 H, C = 10 μF connected to a 230 V, 50 Hz AC supply. Find the impedance and current at resonance.
Describe Davisson and Germer experiment that confirmed the wave nature of electrons.
Distinguish between nuclear fission and nuclear fusion. Give one example of each with equations.
Explain the working of an NPN transistor as an amplifier in CE configuration.
Explain Schottky and Frenkel defects in crystals with examples.
Derive the relationship between elevation of boiling point and molar mass of solute.
Calculate the pH of 0.1 M acetic acid solution given Ka = 1.8 × 10⁻⁵.
Calculate the standard enthalpy of formation of CH₄ given that bond energies of C-H, H-H and the enthalpy of sublimation of carbon are known.
Distinguish between electrolytic cells and galvanic cells. Explain Faraday's laws of electrolysis.
The half-life of a first order reaction is 30 minutes. Calculate the time required for 90% completion of the reaction.
Explain the anomalous behaviour of oxygen in group 16.
Explain the colour of transition metal ions using crystal field theory.
Draw the structures of geometrical isomers of [Pt(NH₃)₂Cl₂]. Explain the difference between geometrical and optical isomerism.
Distinguish between ethyl chloride and chloroform using a chemical test.
Explain Williamson's synthesis for the preparation of ethers. Write the mechanism.
How are carboxylic acids prepared from alcohols and Grignard reagents? Explain their acidic character.
Describe the carbylamine reaction and coupling reaction of amines with equations.
What are vitamins? Classify them with examples. Explain the deficiency diseases.
Distinguish between thermoplastics and thermosetting polymers with examples.
Distinguish between soaps and synthetic detergents. How do they clean?
Explain the process of double fertilization in angiosperms. What is its significance?
Describe the menstrual cycle. Explain the role of hormones in regulating the cycle.
Explain the chromosomal theory of inheritance. What is linkage and crossing over?
What is the genetic code? Explain its salient features. How is it degenerate?
What is Hardy-Weinberg principle? Write the equation and state the factors affecting gene frequency.
Describe the mechanism of phloem transport. Explain the pressure flow hypothesis.
Distinguish between macronutrients and micronutrients. Explain the role of nitrogen in plant nutrition.
What is cardiac cycle? Explain the stages of cardiac cycle with the help of a diagram.
Explain the mechanism of hormone action. Distinguish between steroid and peptide hormones.
Describe the life cycle of Plasmodium that causes malaria. How is malaria transmitted?
Describe the methods of animal breeding. What is artificial insemination?
Describe the process of polymerase chain reaction (PCR) and its applications.
Describe the different types of species interactions with suitable examples.
Describe the carbon cycle with a neat diagram. Why is it called a biogeochemical cycle?
Describe the methods of in situ and ex situ conservation of biodiversity with examples.
Using the laws of logic, prove that (p → q) ∧ (p → r) ≡ p → (q ∧ r).
If A is a square matrix, prove that A(Aᵀ) is symmetric. Give an example.
Find the general solution of the equation cos2θ = sinθ.
Find the combined equation of the lines x + 2y - 3 = 0 and 2x - y + 1 = 0.
Find the projection of vector a = i + 2j + k on vector b = 4i - 3j + 5k.
Find the angle between the line (x-1)/2 = y/3 = (z+1)/-1 and the plane 3x + 4y - 5z = 7.
Minimize Z = 3x + 2y subject to x + y ≥ 8, 3x + y ≥ 12, x ≥ 0, y ≥ 0 by graphical method.
Find the derivative of tan⁻¹(√((1- cosx)/(1+ cosx))) with respect to x.
A wire of length 28 m is cut into two pieces to form a square and a circle. Find the lengths of the pieces that minimize the total area enclosed.
Evaluate ∫x² sin x dx using integration by parts.
Evaluate ∫₀¹ x(1-x)⁵ dx using Beta-Gamma functions.
Solve the differential equation dy/dx + y cot x = sin x.
In a normal distribution with mean 50 and standard deviation 10, find the probability that X lies between 40 and 60.
The mean and variance of a binomial distribution are 8 and 4.8 respectively. Find n and p.
Derive the expression for work done in an adiabatic process.
What are stationary waves? Explain the formation of stationary waves in a closed pipe organ.
A convex lens of focal length 20 cm forms a real image at a distance of 30 cm. Find the object distance and magnification.
State the principle of superposition for electric forces. Two point charges repel each other with a force F when placed in air. If the distance between them is doubled, what will be the new force?
A wire of resistance 4 Ω is stretched to twice its original length. Find its new resistance.
Explain the principle of a moving coil galvanometer. How is it converted into an ammeter?
Explain the working of a half wave rectifier with a circuit diagram.
Explain the laws of chemical combination with examples.
Explain the quantum numbers. Write all the four quantum numbers for the last electron of sodium atom.
Explain the concept of hybridization. Describe the sp³ hybridization with the example of CH₄.
Distinguish between electrochemical cell and electrolytic cell. Give one example of each.
Define electronegativity. Explain the trends of electronegativity in the periodic table.
Explain the types of organic reactions: addition, substitution and elimination with one example each.
Distinguish between saturated and unsaturated hydrocarbons with suitable tests.
Calculate the pressure exerted by 2 moles of CO₂ at 27°C in a 5 L container using van der Waals equation.
What is Brownian motion? Explain its significance in colloidal systems.
Explain the application of radioisotopes in medicine and agriculture.
Find ∫ dx/(x² - a²) and write the result.
Two dice are thrown simultaneously. Find the probability that the sum of the numbers appearing is at least 10.
What are the factors affecting the rate of photosynthesis? Explain Blackman's law of limiting factors.
Distinguish between aerobic and anaerobic respiration. Give examples of anaerobic organisms.
Convert 1 newton into dyne using dimensional analysis.
State Newton's laws of motion. Explain the concept of inertia with an example.
Define SHM. Derive the differential equation of SHM.
State Heisenberg's uncertainty principle. Why is it significant only for subatomic particles?
Explain VSEPR theory. Predict the geometry of NH₃ and H₂O.
What is a redox reaction? Balance the following equation using ion-electron method.
Prove that √3 is irrational.
Find the equation of the line passing through (2,3) and perpendicular to 3x+4y=12.
Explain the structure and function of mitochondria with a labeled diagram.
Explain the mechanism of enzyme action using lock-and-key model.
Describe the structure and function of nephrons.
State and prove the theorem of parallel axes.
Explain the molecular theory of surface tension. Define surface energy.
State the law of equipartition of energy. Calculate the number of degrees of freedom for monatomic, diatomic and polyatomic gases.
Derive an expression for work done during an isothermal expansion of an ideal gas.
Define damped harmonic oscillator. Write the differential equation and discuss the three cases of damping.
State the laws of vibrating strings. Verify them experimentally using a sonometer.
State Huygens' principle. Using it, prove Snell's law of refraction.
Derive the expression for capacitance of a parallel plate capacitor with a dielectric slab between the plates.
Explain the principle of a potentiometer. How is it used to compare the emf of two cells?
Obtain an expression for the magnetic field due to a long straight current-carrying conductor using Ampere's circuital law.
Explain Curie temperature and its significance for ferromagnetic materials.
Define self-inductance and mutual inductance. Derive an expression for the energy stored in an inductor.
Define power factor in an AC circuit. Show that the average power dissipated in a pure inductor is zero.
Calculate the de Broglie wavelength of an electron accelerated through a potential difference of 100 V.
State the radioactive decay law. Derive the relation N = N₀e^(-λt). Define half-life and mean life.
With a neat circuit diagram, explain the working of a full wave rectifier.
Calculate the packing efficiency in a face-centered cubic (FCC) unit cell.
Define molality and molarity. Calculate the molality of a solution containing 10 g of glucose dissolved in 250 g of water.
Explain the concept of buffer solutions. Derive Henderson-Hasselbalch equation for an acidic buffer.
What is spontaneous process? Explain the conditions for spontaneity in terms of Gibbs free energy.
State and explain Nernst equation. Calculate the emf of a Zn-Cu cell under standard conditions.
Explain Arrhenius equation. How does temperature affect the rate of a reaction?
Describe the manufacture of sulphuric acid by contact process.
What are lanthanoids? Explain lanthanoid contraction and its consequences.
Explain Valence Bond Theory for the bonding in coordination compounds. Give the hybridization of [Co(NH₃)₆]³⁺.
What are Grignard reagents? How are they prepared? Give two important applications.
Describe the acidic nature of phenols. How does it differ from alcohols?
Explain the mechanism of aldol condensation. Give one example.
Explain the basicity of amines. Arrange aniline, methylamine and dimethylamine in increasing order of basic strength.
Describe the structure of proteins. Explain the primary, secondary, tertiary and quaternary structures.
Explain the mechanism of free radical addition polymerization with the example of polythene.
What are food preservatives? Explain the role of sodium benzoate and sodium metabisulphite as preservatives.
Describe the structure of a typical angiosperm ovule with a labeled diagram.
Explain the process of oogenesis in humans with a schematic representation.
What is codominance? Explain it with the inheritance of ABO blood groups in humans.
Explain the process of transcription in prokaryotes.
State Darwin's theory of natural selection. Explain the evidence for evolution from comparative anatomy.
What is transpiration? Explain the factors affecting transpiration rate.
What are plant growth regulators? Explain the physiological effects of auxins.
Describe the structure of the human heart with a labeled diagram. Explain the path of blood circulation.
Draw a labeled diagram of the human brain and state the functions of each part.
What is immunity? Distinguish between active and passive immunity with examples.
What is tissue culture? Explain the technique of micropropagation.
What are restriction enzymes? Explain their role in genetic engineering.
Explain the concept of ecological niche. Differentiate between habitat and niche.
Explain the flow of energy through an ecosystem. What is the 10% law?
Explain the concept of biodiversity hotspots. Name the four biodiversity hotspots of India.
Express the following statement in symbolic form: 'If it rains then the match will be cancelled and we will stay home.'
Solve the system of equations x + 2y = 5, 3x - y = 8 using matrix inversion method.
Solve the trigonometric equation 2sin²θ - 3sinθ + 1 = 0 for θ in [0, 2π].
Find the joint equation of lines passing through the origin and perpendicular to the lines represented by ax² + 2hxy + by² = 0.
Prove that the scalar triple product [a b c] = 0 if and only if the vectors are coplanar.
Find the distance of the point (2,3,4) from the plane 2x + y - 2z + 5 = 0.
Define the feasible region in LPP. What are corner points? Explain their significance.
Differentiate x^sinx with respect to x using logarithmic differentiation.
Show that the function f(x) = x³ - 3x² + 3x + 2 is always increasing.
Evaluate ∫dx/(x² + 4x + 13).
Using the property of definite integral, evaluate ∫₀^(π/2) log(sin x) dx.
Solve the differential equation (x² - y²) dx + 2xy dy = 0.
Define probability distribution of a random variable. Find the mean and variance for the distribution of a fair die.
For a binomial distribution, prove that mean = np and variance = npq.
Distinguish between isothermal and adiabatic processes with examples.
Derive Newton's formula for the velocity of sound in air. Explain Laplace's correction.
Explain total internal reflection with conditions and applications.
Define electric dipole moment. Derive the expression for electric field on the axial line of an electric dipole.
Explain the concept of resistivity and conductivity. How does resistivity of a conductor vary with temperature?
Derive the expression for the magnetic field at a point on the axis of a bar magnet.
Distinguish between intrinsic and extrinsic semiconductors. Explain doping with examples.
What is limiting reagent? In the reaction 2H₂ + O₂ → 2H₂O, if 4 g of H₂ reacts with 32 g of O₂, identify the limiting reagent.
State de Broglie's principle. Calculate the de Broglie wavelength of an electron moving with velocity 2 × 10⁶ m/s.
Using MOT, predict the bond order and magnetic nature of O₂ and N₂.
What are redox reactions? Balance the equation KMnO₄ + FeSO₄ + H₂SO₄ → K₂SO₄ + MnSO₄ + Fe₂(SO₄)₃ + H₂O by ion-electron method.
Explain electron gain enthalpy. Why does chlorine have the highest negative electron gain enthalpy?
Define the terms: homolytic and heterolytic fission. Give examples of each.
Describe the mechanism of electrophilic addition of bromine to ethene.
Explain the liquefaction of gases using the critical temperature concept.
Explain the classification of colloids based on the physical state of dispersed phase and dispersion medium.
Define half-life. The half-life of a radioactive isotope is 10 days. How much of a 100 g sample remains after 30 days?
Define equivalence relation. Show that the relation R = {(a,b): a - b is divisible by 3} on the set of integers is an equivalence relation.
Find the general solution of the equation sinθ + sin3θ + sin5θ = 0.
Show that the points (1,2), (3,4) and (5,6) are collinear by distance formula.
If y = e^x sin x, find dy/dx.
Evaluate ∫cos²x dx from 0 to π/2.
State and explain Bayes' theorem. In a class, 60% are boys and 40% are girls. 80% of boys and 90% of girls pass an exam. Find the probability that a randomly chosen student who passed is a boy.
Explain the taxonomic hierarchy with suitable examples.
Describe the life cycle of a fern plant with a neat diagram.
Differentiate between chordates and non-chordates with examples.
Draw a labeled diagram of a plant cell. Explain the functions of any three organelles.
Explain the structure of proteins. What are essential and non-essential amino acids?
Describe the anatomy of a dicot stem with a labeled diagram.
Differentiate between C3 and C4 plants with examples.
Describe the Krebs cycle. How many ATP molecules are produced from one glucose molecule during aerobic respiration?
Define work, energy, and power. State work-energy theorem.
Derive the relationship between Kp and Kc. Give one example each of homogeneous and heterogeneous equilibrium.
Evaluate ∫(3x²+2x-1)dx as a limit of sum.
Draw a labeled diagram of the human heart showing the flow of blood.
State the law of conservation of angular momentum. Give two real-life examples.
State Stokes' law. Derive an expression for terminal velocity of a sphere falling through a viscous fluid.
Define entropy. State the second law of thermodynamics in terms of entropy.
Define electric potential. Derive an expression for electric potential due to a point charge.
What are unit cells? Explain the seven crystal systems.
What are interhalogen compounds? Give their types and examples.
Find the equation of the line passing through the point of intersection of 2x + y = 5 and x + 3y = 5 and making equal intercepts on the axes.
Evaluate lim(x→0) (sin 3x)/(2x).
Explain binomial nomenclature with examples. Who proposed this system?
Explain the stages of meiosis I with the help of diagrams.