Top 500+ TRB Physics Question Paper with Answers - 5

Question: 21

The total force exerted by a liquid perpendicular to the entire area is called

(A) Exerting force

(B) Weight

(C) Pressure

(D) Thrust

Question: 22

The breathing difficulty due to effects of electric current on human body is at

(A) 25–50 mA

(B) 15–25 mA

(C) 50–100 mA

(D) 10–15 mA

Question: 23

Astronauts in space can’t stand at one place, because

(A) there is no gravity

(B) viscous forces of the atmosphere are very strong

(C) solar wind exert an upward force

(D) atmospheric pressure is very low

Question: 24

The diffusion of light in the atmosphere is due to

(A) helium

(B) water vapour

(C) carbon dioxide

(D) dust particle

Question: 25

The electric device with thermostat is ___

(A) mica

(B) iron box

(C) fan

(D) electric bulb