Physics questions
20027 published questions with worked solutions.
- Given below are two statements. One is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A) : A...
- The torque due to the force (2 i + j +2 k ) about the origin, acting on a particle whose position vector is ( i + j + k ), would...
- A force F = 2 i +b j + k is applied on a particle and it undergoes a displacement i -2 j - k . What will be the value of b, if...
- Given below are two statements. One is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A) : In...
- A ball of mass 100 g is projected with velocity 20 m/s at 60° with horizontal. The decrease in kinetic energy of the ball during...
- A transparent film of refractive index, 2.0 is coated on a glass slab of refractive index, 1.45. What is the minimum thickness of...
- A proton is moving undeflected in a region of crossed electric and magnetic fields at a constant speed of 2 10^5 ms^ -1 . When...
- A parallel plate capacitor of area A = 16 cm^2 and separation between the plates 10 cm, is charged by a DC current. Consider a...
- A tube of length 1m is filled completely with an ideal liquid of mass 2M, and closed at both ends. The tube is rotated uniformly...
- A ball having kinetic energy KE, is projected at an angle of 60° from the horizontal. What will be the kinetic energy of ball at...
- The refractive index of the material of a glass prism is 3 . The angle of minimum deviation is equal to the angle of the prism....
- The energy of a system is given as E(t) = ^3 e^ - t , where t is the time and = 0.3 s^ -1 . The errors in the measurement of and...
- In photoelectric effect an em-wave is incident on a metal surface and electrons are ejected from the surface. If the work...
- A circular disk of radius R meter and mass M kg is rotating around the axis perpendicular to the disk. An external torque is...
- Match List-I with List-II. List-I: (A) Permeability of free space (B) Magnetic field (C) Magnetic moment (D) Torsional constant...
- If a satellite orbiting the Earth is 9 times closer to the Earth than the Moon, what is the time period of rotation of the...
- A galvanometer having a coil of resistance 30 need 20 mA of current for full-scale deflection. If a maximum current of 3 A is to...
- The width of one of the two slits in Young's double slit experiment is d while that of the other slit is xd. If the ratio of the...
- Assertion (A) : The binding energy per nucleon is found to be practically independent of the atomic number A, for nuclei with...
- Water of mass m gram is slowly heated to increase the temperature from T_1 to T_2. The change in entropy of the water, given...