Daily Physics Quiz(English) for Police Exam : 22/05/2019

1) A raw egg and a boiled egg of the same appearance, same size and same mass can be distinguished, without breaking, by using

*a)inertia of motion

b) inertia of rest

c) conservation of linear momentum

d) conservation of angular momentum

2) Nib of a pen is split keeping in view the phenomenon of

a)osmosis

b) diffusion

*c) capillarity

d) cohesion

3) Speeds of bodies exceeding the speed of sound are called

*a)supersonic

b) ultrasonic

c) infrasonic

d) superfast

4) Refractive index is highest for

a)glass

b) water

c) rock-salt

*d) diamond

5) The splitting of a beam of white light into its different colours is known as

a)refraction

b) reflection

*c) dispersion

d) none of these

6) In winter, the temperature of the inside wall of a house as compared to the temperature of the air in the room is

*a)lower

b) higher

c) the same

d) depends on the atmospheric pressure

7) At what temperature are the readings of a centigrade and Fahrenheit thermometers the same?

a)-400

b) 400

*c) 1000

d) 2120

8) Which of the following electronic devices is used for digital displays electronic calculators?

a)photo diodes

b) zener diodes

c) LEDs

*d) none of these

9) Which one of the following substances is non-magnetic?

a)glass

b) wood

c) silver

*d) all these

10) Sound travels fastest through

a)vacuum

*b) steel

c) water

d) air