Physics
Which one of the following processes is responsible for the glittering of air bubble rising through water?

Reflection of light
Scattering of light
Total internal reflection of light
Refraction of light

ANSWER DOWNLOAD EXAMIANS APP

Physics
The term ''equinox' means

The path which the Earthtakes around the Sun
The time when the Sun seems to be going round and round in the sky in the Arctic but does not go below the horizon
When the day and night are of equal duration
The axis of the Earth around which it rotates

ANSWER DOWNLOAD EXAMIANS APP

Physics
Railway tracks are banked on curves so that

The train may not fall down inwards
Necessary centripetal force may be obtained from the horizontal component of the weight of the train
No frictional force may be produced between the tracks and the wheels of the train
Necessary centrifugal force may be obtained from the horizontal component of the weight of the train

ANSWER DOWNLOAD EXAMIANS APP