Physics questions
20027 published questions with worked solutions.
- 'n' polarizing sheets are arranged such that each makes an angle 45° with the proceeding sheet. An unpolarized light of intensity...
- A block of mass 5 kg is placed at rest on a table of rough surface. Now, if a force of 30 N is applied in the direction parallel...
- Statement I: Acceleration due to gravity is different at different places on the surface of earth. Statement II: Acceleration due...
- Match List I with List II: List-I: (A) Intrinsic semiconductor (B) n-type semiconductor (C) p-type semiconductor (D) Metals...Not in JEE Advanced syllabus
- (P+ V^2 )(V-b)=RT represents the equation of state of some gases. Where P is the pressure, V is the volume, T is the temperature...
- A steel wire with mass per unit length 7.0 10^ -3 kg m^ -1 is under tension of 70 N. The speed of transverse waves in the wire...
- A sample of a gas at temperature T is adiabatically expanded to double its volume. The work done by the gas in the process is...
- The average kinetic energy of a molecule of the gas is
- Match List I with List II List-I: (A) AC generator (B) Transformer (C) Resonance phenomenon to occur (D) Sharpness of resonance...
- Which of the following frequencies does not belong to FM broadcast.
- If earth has a mass nine times and radius twice to that of a planet P. Then v_e 3 x ms^ -1 will be the minimum velocity required...
- A mercury drop of radius 10^ -3 m is broken into 125 equal size droplets. Surface tension of mercury is 0.45 Nm^ -1 . The gain in...
- Match List I with List II List-I: (A) Microwaves (B) Gamma rays (C) Radio waves (D) X-rays List-II: (I) Radio active decay of the...
- A child stands on the edge of a cliff 10 m above the ground and throws a stone horizontally with an initial speed of 5 ms^ -1 ....
- The amplitude of a particle executing SHM is 3 cm. The displacement at which its kinetic energy will be 25% more than the...
- A certain pressure 'P' is applied to 1 litre of water and 2 litre of a liquid separately. Water gets compressed to 0.01% whereas...
- A light of energy 12.75 eV is incident on a hydrogen atom in its ground state. The atom absorbs the radiation and reaches to one...
- A small particle moves to position 5 i -2 j + k from its initial position 2 i +3 j -4 k under the action of force 5 i +2 j +7 k...
- A series LCR circuit is connected to an ac source of 220 V, 50 Hz. The circuit contain a resistance R = 100 and an inductor of...
- Two equal positive point charges are separated by a distance 2a. The distance of a point from the centre of the line joining two...