Physics questions
20027 published questions with worked solutions.
- A quantity Q is formulated as X^ -2 Y^ 3 2 Z^ - 2 5 . X, Y and Z are independent parameters which have fractional errors of 0.1,...
- A monoatomic gas having = 5 3 is stored in a thermally insulated container and the gas is suddenly compressed to ( 1 8 )^ th of...
- Two strings with circular cross section and made of same material are stretched to have same amount of tension. A transverse wave...
- An infinitely long wire has uniform linear charge density = 2nC/m. The net flux through a Gaussian cube of side length 3 cm, if...
- Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R. Assertion A : Work done in...
- Two metal spheres of radius R and 3R have same surface charge density . If they are brought in contact and then separated, the...
- Water falls from a height of 200 m into a pool. Calculate the rise in temperature of the water assuming no heat dissipation from...
- A 3m long wire of radius 3 mm shows an extension of 0.1 mm when loaded vertically by a mass of 50 kg in an experiment to...
- A concave-convex lens of refractive index 1.5 and the radii of curvature of its surfaces are 30 cm and 20 cm, respectively. The...
- An electron is released from rest near an infinite non-conducting sheet of uniform charge density '- '. The rate of change of...
- A thin solid disk of 1 kg is rotating along its diameter axis at the speed of 1800 rpm. By applying an external torque of 25 Nm...
- Displacement of a wave is expressed as x(t) = 5 (628t + 2 ) m. The wavelength of the wave when its velocity is 300 m/s is : ( =...
- In an electromagnetic system, a quantity defined as the ratio of electric dipole moment and magnetic dipole moment has dimension...
- Consider a n-type semiconductor in which n_e and n_h are number of electrons and holes, respectively. (A) Holes are minority...Not in JEE Advanced syllabus
- For the determination of refractive index of glass slab, a travelling microscope is used whose main scale contains 300 equal...
- An object is kept at rest at a distance of 3R above the earth's surface where R is earth's radius. The minimum speed with which...
- A wheel is rolling on a plane surface. The speed of a particle on the highest point of the rim is 8 m/s. The speed of the...
- Two polarisers P_1 and P_2 are placed in such a way that the intensity of the transmitted light will be zero. A third polariser...
- Consider a rectangular sheet of solid material of length = 9 cm and width d = 4 cm. The coefficient of linear expansion is = 3.1...
- There are n number of identical electric bulbs, each is designed to draw a power p independently from the mains supply. They are...