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. The displacement of SHM is written as X = X`sinθt if the displacement is written by X = Xθ sont then phase constant will be equal to_______________?
  1. 45°
  2. 90°
  3. 180°
Question. In Davisson-Germer experiment the diffracted proton from crystal shows______________?
  1. Particle property
  2. Wave property
  3. Light property
  4. Quantum property
Question. For the successful operation of Heat engine which condition should be met ?
  1. cyclic process
  2. operated at certain temperature difference
  3. both A and B
  4. none of these
Question. The dimension of power is_______________?
  1. [ML2T-3]
  2. [ML2T-2]
  3. [ML2T3]
  4. none of these
Question. The unit of radioactivity curie is equal to_________________?
  1. 3.74 x 109 disintegration per sec
  2. 3.70 x 1010 disintegration per sec
  3. 3.55 x 1010 disintegration per sec
  4. 3.60 x 1010 disintegration per sec
Question. The value of resistivity for insulator is of the order of____________?
  1. 105 ohm metre
  2. 106 ohm metre
  3. 107 ohm metre
  4. 108 ohm metre
Question. n an LCR series circuit, if V is the effective value of the applied voltage VR is the voltage across R VL is the effective voltage across L & Vc is the effective voltage across C then_______________?
  1. . V = VR+VL+VC
  2. V2 = VR2+VL2+VC2
  3. V2 = VR2+(VL-VC)2
  4. V2 = VL2+(VR-VC)2
Question. Torque acting on a body determines_______________?
  1. Acceleration
  2. Linear acceleration
  3. Angular acceleration
  4. Direction of motion of the body
Question. At resonance the value of the power factor in an L-C-R series circuit is_______________?
  1. Zero
  2. 2
  3. 1
  4. Not definite
Question. The consumption of energy by a 60 watt bulb in 2 sec is_________________?
  1. 120 J
  2. 60 J
  3. 30 J
  4. 0.02 J
Question. Which one of the following physical quantities does not have the dimensions of force per unit area ?
  1. Stress
  2. Strain
  3. Youngs modulus
  4. Pressure
Question. The branch of science which deals with the properties of matter and energy is called__________?
  1. Biology
  2. Geography
  3. Physics
  4. Chemistry
Question. For confinement of electron in a box of radius 10-14m the electron, speed should be_____________?
  1. 107m/sec
  2. Should be greater than the speed of light.
  3. Be zero
  4. Not be wave-like