Physics questions
20027 published questions with worked solutions.
- The total internal energy of two mole monoatomic ideal gas at temperature T = 300 K will be _____ J. (Given R = 8.31 J/mol.K)
- A singly ionized magnesium atom (A = 24) ion is accelerated to kinetic energy 5 keV, and is projected perpendicularly into a...
- A telegraph line of length 100 km has a capacity of 0.01 F/km and it carries an alternating current at 0.5 kilo cycle per second....
- Two identical metallic spheres A and B when placed at certain distance in air repel each other with a force of F. Another...
- Match List I with List II. List I: A. Torque B. Stress C. Latent Heat D. Power List II: I. Nms^ -1 II. J kg^ -1 III. Nm IV. Nm^...
- Two identical thin metal plates has charge q_ 1 and q_ 2 respectively such that q_ 1 > q_ 2 . The plates were brought close to...
- A juggler throws balls vertically upwards with same initial velocity in air. When the first ball reaches its highest position, he...
- A circuit element X when connected to an a.c. supply of peak voltage 100 V gives a peak current of 5 A which is in phase with the...
- Read the following statements: (A) Volume of the nucleus is directly proportional to the mass number. (B) Volume of the nucleus...
- An object of mass 1 kg is taken to a height from the surface of earth which is equal to three times the radius of earth. The gain...
- A ball is released from a height h. If t_ 1 and t_ 2 be the time required to complete first half and second half of the distance...
- If momentum of a body is increased by 20%, then its kinetic energy increases by :
- The torque of a force 5 i + 3 j - 7 k about the origin is . If the force acts on a particle whose position vector is 2 i + 2 j +...
- The vertical component of the earth's magnetic field is 6 10^ -5 T at any place where the angle of dip is 37°. The earth's...Not in JEE Advanced syllabus
- The root mean square speed of smoke particles of mass 5 10^ -17 kg in their Brownian motion in air at NTP is approximately....
- A metal wire of length 0.5 m and cross-sectional area 10^ -4 m^ 2 has breaking stress 5 10^ 8 Nm^ -2 . A block of 10 kg is...
- The velocity of a small ball of mass 0.3 g and density 8 g/cc when dropped in a container filled with glycerine becomes constant...
- A modulating signal 2 (6.28 10^ 6 )t is added to the carrier signal 4sin(12.56 10^ 9 )t for amplitude modulation. The combined...Not in JEE or NEET syllabus
- The speed of a transverse wave passing through a string of length 50 cm and mass 10 g is 60 ms^ -1 . The area of cross-section of...
- The metallic bob of simple pendulum has the relative density 5. The time period of this pendulum is 10 s. If the metallic bob is...