Physics questions
20027 published questions with worked solutions.
- The current sensitivity of moving coil galvanometer is increased by 25%. This increase is achieved only changing in the number of...
- A coin placed on a rotating table just slips when it is placed at a distance of 1 cm from the centre. If the angular velocity of...
- A transmitting antenna is kept on the surface of the earth. The minimum height of receiving antenna required to receive the...Not in JEE or NEET syllabus
- 1 kg of water at 100°C is converted into steam at 100°C by boiling at atmospheric pressure. The volume of water changes from 1.00...
- On a temperature scale 'X', the boiling point of water is 65°X and the freezing point is –15°X. Assuming that the X scale is...
- The critical angle for a denser-rarer interface is 45°. The speed of light in rarer medium is 3 10^8m/s. The speed of light in...
- A force F =(2+3x) i acts on a particle in the x direction where F is in newton and x is in meter. The work done by this force...
- The length of a wire becomes l_1 and l_2 when 100 N and 120 N tension are applied respectively. If 10l_2 = 11l_1, then the...
- A monochromatic light is incident on a hydrogen sample in ground state. Hydrogen atoms absorb a fraction of light and...
- A solid sphere of mass 500 g radius 5 cm is rotated about one of its diameter with angular speed 10 rad s^ -1 . If the moment of...
- A projectile fired at 30º to the ground is observed to be at same height at time 3 s and 5 s after projection, during its flight....
- The equation of wave is given by Y = 10^ -2 2 (160t-0.5x+ /4) Where Y and X are in m and t in s. The speed of the wave is...
- The radius of curvature of each surface of a convex lens having refractive index 1.8 is 20 cm. The lens is now immersed in a...
- Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R Assertion A: EM waves used...
- If the r.m.s speed of chlorine molecule is 490 m/s at 27°C, the r.m.s speed of argon molecules at the same temperature will be...
- Two satellites A and B move round the earth in the same orbit. The mass of A is twice the mass of B. The quantity which is same...
- Given below are two statements: Statement I : The diamagnetic property depends on temperature. Statement II : The induced...Not in JEE Advanced syllabus
- A wire of resistance 160 is melted and drawn in a wire of one-fourth of its length. The new resistance of the wire will be
- A body cools from 80°C to 60° in 5 minutes. The temperature for the surrounding is 20° C. The time it takes to cool from 60° C to...
- An ice cube has a bubble inside. When viewed from one side the apparent distance of the bubble is 12 cm. When viewed from the...