MCQs4All - Physics Collection

Physics MCQs for NTS, FPSC, CSS, PPSC, PMS, UTS, FTS, OTS, Teaching, CT, PTC, SST, B.Ed, M.Ed Test of past papers

Question. A magnetic compass will be deflected if it is kept near a____________________?
  1. charge in motion
  2. charge at rest
  3. both
  4. none
Question. Photon of highest frequency will be absorbed when transition takes place from_____________?
  1. 1st to 5th orbit
  2. 2nd to 5th orbit
  3. 3rd to 5th orbit
  4. 4th to 5th orbit
Question. Adiabatic process is also called______________?
  1. Heat exchange process
  2. Heating process
  3. Isentropic process
  4. All of the above
Question. The restoring force acting on the simple pendulum is given by_______________?
  1. mg sin θ
  2. mg sin θ
  3. mg cos θ
  4. mg cos θ
Question. An observer shoots parallel to a meter stick at very high (relativistic) speed and finds that the length of meter stick is________________?
  1. greater than one meter
  2. less than one meter
  3. one meter
  4. a foolish question
Question. Three coplanar forces acting on a body keep it in equilibrium. They should therefore be_______________?
  1. Concurrent
  2. Non-concurrent
  3. Parallel
  4. Non-parallel
Question. Mark the wrong statement ?
  1. a frame of reference which is either at rest or moves with a constant velocity is called an inertial frame of reference
  2. an un-accelerated frame of reference is called an inertial frame of reference
  3. all the frames of reference in uniform rectilinear motion are equivalent
  4. Newtons laws of motion are valid in an accelerated (non inertial) frame of reference
Question. If the wavelength of incident radiation is increased in photoemission then_________________?
  1. The maximum kinetic energy of the photoelectrons increases
  2. The minimum kinetic energy of the photoelectrons decreases
  3. The minimum kinetic energy of the photoelectrons increases
  4. The average kinetic energy of the photoelectrons decreases
Question. Beta particles ionize an atom_________________?
  1. Due to the electrostatic force of attraction
  2. Due to the electrostatic force of repulsion
  3. Due to a direct collision
  4. Due to the gravitational force
Question. An alpha particle in a single encounter__________________?
  1. Loses a small fraction of its energy
  2. Losses most of its energy
  3. Loses no energy at all
  4. Loses all of its energy
Question. A stationary wave is set up in the air column of a closed pipe. At the closes end of the pipe _____________________?
  1. always an node in formed
  2. always an antinode is formed
  3. neither node nor antinode is formed
  4. sometimes a node and sometimes an antinode is formed
Question. Absolute uncertainty in a measurement depends upon______________?
  1. The magnitude of the measurement
  2. Least count of the instrument
  3. Percentage error in the measurement
  4. All of a, b and C
Question. Electrical resonance is observed in_______________?
  1. Radio
  2. Microwave oven
  3. Both in radio and microwave oven
  4. Neither in radio nor in a microwave oven