Physics questions
20027 published questions with worked solutions.
- Match List-I with List II of Electromagnetic waves with corresponding wavelength range: List I: (A) Microwave (B) Ultraviolet (C)...
- A wire of length 'L' and radius 'r' is clamped rigidly at one end. When the other end of the wire is pulled by a force f, its...
- The de Broglie wavelength of an electron having kinetic energy E is . If the kinetic energy of electron becomes E 4 , then its...
- The height of transmitting antenna is 180 m and the height of the receiving antenna is 245 m. The maximum distance between them...Not in JEE or NEET syllabus
- A thermodynamic system is taken through a cyclic process. The total work done in the process is :
- A single slit of width 'a' is illuminated by a monochromatic light of wavelength 600 nm. The value of 'a' for which first minimum...
- A vector in x – y plane makes an angle of 30° with y-axis. The magnitude of y-component of vector is 2 3. The magnitude of...
- The position of a particle related to time is given by x = (5t^2-4t+5)m. The magnitude of the velocity of the particle at t = 2 s...
- The electric field due to a short electric dipole at a large distance (r) from center of dipole on the equatorial plane varies...
- In a linear Simple Harmonic Motion (SHM) (A) Restoring force is directly proportional to the displacement. (B) The acceleration...
- The speed of a wave produced in water is given by v = ^agb ^c. Where , g and are wavelength of wave, acceleration due to gravity...
- A body is released from a height equal to the radius (R) of the earth. The velocity of the body when it strikes the surface of...
- Given below are two statements: Statement I : The equivalent resistance of resistors in a series combination is smaller than...
- In the given circuit, the current (I) through the battery will be
- The fundamental frequency of vibration of a string between two rigid support is 50 Hz. The mass of the string is 18 g and its...
- A block of mass 10 kg is moving along x-axis under the action of force F = 5x N. The work done by the force in moving the block...
- A solid sphere and a solid cylinder of same mass and radius are rolling on a horizontal surface without slipping. The ratio of...
- An electron in a hydrogen atom revolves around the nucleus with a speed of 6.76 10^6ms^ -1 in an orbit of radius 0.52 Å. The...
- There is an air bubble of radius 1.0 mm in a liquid of surface tension 0.075 Nm^ -1 and density 1000 kg m^ -3 at a depth of 10 cm...
- A 20 cm long metallic rod is rotated with 210 rpm about an axis normal to the rod passing through its one end. The other end of...