MCQs on Gravitation
MCQs on Gravitation What happens to the gravitational potential at the centre of the uniform spherical shell which shrinks gradually? (a) Remains constant (b) Decreases (c) Increases (d) Oscillates Answer:…
MCQs on Physical World and Measurement
MCQs on Physical World and Measurement How many numbers of base SI units are there? (a) 5 (b) 10 (c) 7 (d) 9 Answer: (c) 7 What is the percentage…
MCQs on Laws of motion
MCQs on Laws of motion Choose the correct statement (a) A body can be accelerated by frictional force (b) There can be zero friction (c) Kinetic friction is greater than…
MCQs on Oscillations and Waves
MCQs on Oscillations and Waves Calculate the amplitude for a SHM using the equation x = 3sin2pt + 4cos3pt (a) 3 (b) 5 (c) 4 (d) 7 Answer: (b) 5…
MCQs on Current Electricity
MCQs on Current Electricity What does the internal resistance of a cell mean? (a) The resistance of the material used in the cell (b) The vessel of the cell (c)…
MCQs on Optics
MCQs on Optics Calculate the velocity of the light ray in the medium, if the critical angle for TIR from medium to the vacuum is 30°. (a) 2 x 108…
MCQs on Second Law of Motion
MCQs on Second Law of Motion A bullet of 5 gms travels with a velocity of 100 m/sec. It penetrates a wooden block up to 6 cm. What is the…
MCQs on Relative Velocity
MCQs on Relative Velocity Two bikes travelling in the same direction move at a speed of 30 km/hr. The bikes are separated by a distance of 5 km. What would…
MCQs on Photometry
MCQs on Photometry What is the power of the lamp if its luminous efficiency is 2 lumen/watt and its luminous intensity is 42 candela? 62 W 138 W 76 W…
MCQs on Semiconductor Device
MCQs on Semiconductor Device Which among the following is the most commonly used semiconductor? Silicon Carbon Germanium Sulphur Answer: (a) Silicon What happens to the resistance of a pure semiconductor…
MCQs on Third law of motion
MCQs on Third law of motion Walking is possible on the account of Newton’s First Law of Motion Newton’s Second Law of Motion Newton’s Third Law of Motion Newton’s Law…
MCQs on Ray Optics
MCQs on Ray Optics What is the distance between two convex lenses LA and LB with focal lengths FA and FB? FA+FB FA-FB FA FB Answer: (a) FA+FB If a…
MCQs on Surface Tension
MCQs on Surface Tension Q1: When there are no external forces, the shape of a liquid drop is determined by Surface Tension of the liquid The density of the liquid…
MCQs on Ohms law
MCQs on Ohms law Q1: If a current of 5 Amperes flows through the conductor. The number of electrons per second will is 1.6 x 10-19 3.12 x 1019 4…
MCQs on Dielectrics
MCQs on Dielectrics Q1: Which among the following is a dielectric? Copper Aluminium Plastic Ceramic Answer: (d) Ceramic Q2: How can a dielectric be converted to a conductor? Compression Heating…
MCQs on Electric flux
MCQs on Electric flux Q1: What is the value of total flux through the faces of the cube with the sides of length a if a charge Q is placed…
MCQs on Mirror Formula
MCQs on Mirror Formula Q1: A convex mirror of focal length f forms an image which is 1/n times the object. The distance of the object from the mirror is…
MCQs on Moving Coil Galvanometer
MCQs on Moving Coil Galvanometer Q1: The deflection θ is related to the electric current I in a galvanometer by the relation I ∝ θ I ∝ tan θ I…
MCQs on Waves Optics
MCQs on Waves Optics Q1: Polarisation phenomenon explains which nature of light? Transverse longitudinal Both transverse and longitudinal geometrical Answer: (a) Transverse Q2: A narrow slit is taken and a…
MCQs on Prism theory and Dispersion of light
MCQs on Prism theory and Dispersion of light Q1: The critical angle between an equilateral prism and air is 45. If the incident ray is perpendicular to the refracting surface,…
MCQs on Electromagnetic Spectrum
MCQs on Electromagnetic Spectrum Q1: Which of the following has a minimum wavelength? Gamma rays Blue light Infrared rays microwave Answer: (a) Gamma rays Q2: Which among the following has…