Physics questions
20027 published questions with worked solutions.
- The diameter of a spherical bob is measured using a vernier callipers. 9 divisions of the main scale, in the vernier callipers,...
- A sample of a gas with = 1.5 is taken through an adiabatic process in which the volume is compressed from 1200 cm^2 to 300 cm^3....
- At very high frequencies, the effective impendance of the given circuit will be____ .
- A resistor dissipates 192 J of energy in 1 s when a current of 4A is passed through it. Now, when the current is doubled, the...
- Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason R. Assertion A : Two metallic...
- A coil is placed in magnetic field such that plane of coil is perpendicular to the direction of magnetic field. The magnetic flux...
- Choose the correct statement about Zener diodeNot in JEE Advanced syllabus
- Choose the correct length (L) versus square of time period (T^2) graph for a simple pendulum executing simple harmonic motion.
- A Carnot engine operating between two reservoirs has efficiency 1 3 . When the temperature of cold reservoir raised by x, its...
- The threshold frequency of a metal is f_0. When the light of frequency 2f_0 is incident on the metal plate, the maximum velocity...
- The escape velocities of two planets A and B are in the ratio 1 : 2. If the ratio of their radii respectively is 1 : 3, then the...
- The ratio of average electric energy density and total average energy density of electromagnetic wave is
- The Young's modulus of a steel wire of length 6 m and cross-sectional area 3 mm^2, is 2 10^ 11 N/m^2. The wire is suspended from...
- If the velocity of light c, universal gravitational constant G and Planck's constant h are chosen as fundamental quantities. The...
- A force F = (5 + 3y^2) acts on a particle in the y-direction, where F is in newton and y is in meter. The work done by the force...
- A block is fastened to a horizontal spring. The block is pulled to a distance x = 10 cm from its equilibrium position (at x = 0)...
- A square shaped coil of area 70 cm^2 having 600 turns rotates in magnetic field of 0.4 Wbm^ -2 , about an axis which is parallel...
- Nucleus A having Z = 17 and equal number of protons and neutrons has 1.2 MeV binding energy per nucleon. Another nucleus B of Z =...
- A cubical volume is bounded by the surfaces x = 0, x = 0, x = a, y = 0, y = a, z = 0, z = a. The electric field in the region is...
- The surface of water in a water tank of cross-section area 750 cm^2 on the top of the house is h m above the tap level. The speed...