# 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_______________? 0° 45° 90° 180° `````` Question. In Davisson-Germer experiment the diffracted proton from crystal shows______________? Particle property Wave property Light property Quantum property `````` Question. For the successful operation of Heat engine which condition should be met ? cyclic process operated at certain temperature difference both A and B none of these `````` Question. The dimension of power is_______________? [ML2T-3] [ML2T-2] [ML2T3] none of these `````` Question. The unit of radioactivity curie is equal to_________________? 3.74 x 109 disintegration per sec 3.70 x 1010 disintegration per sec 3.55 x 1010 disintegration per sec 3.60 x 1010 disintegration per sec ```
``` Question. The value of resistivity for insulator is of the order of____________? 105 ohm metre 106 ohm metre 107 ohm metre 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_______________? . V = VR+VL+VC V2 = VR2+VL2+VC2 V2 = VR2+(VL-VC)2 V2 = VL2+(VR-VC)2 `````` Question. Torque acting on a body determines_______________? Acceleration Linear acceleration Angular acceleration Direction of motion of the body `````` Question. At resonance the value of the power factor in an L-C-R series circuit is_______________? Zero 2 1 Not definite `````` Question. The consumption of energy by a 60 watt bulb in 2 sec is_________________? 120 J 60 J 30 J 0.02 J ```
``` Question. Which one of the following physical quantities does not have the dimensions of force per unit area ? Stress Strain Youngs modulus Pressure `````` Question. The branch of science which deals with the properties of matter and energy is called__________? Biology Geography Physics Chemistry `````` Question. For confinement of electron in a box of radius 10-14m the electron, speed should be_____________? 107m/sec Should be greater than the speed of light. Be zero Not be wave-like ```