Physics
Kepler's law of planetary motion states that the square of the time period is proportional to the

Fourth power of the semi-major axis
Square of the semi-major axis
Semi-major axis
Cube of the semi-major axis

ANSWER DOWNLOAD EXAMIANS APP

Physics
In a conductor

There is no conduction band
The forbidden energy gap is very wide
The valence band and the conduction band overlap each other
The forbidden energy gap is very narrow

ANSWER DOWNLOAD EXAMIANS APP

Physics
Why does the sea appear blue in colour?

Refraction of the sun light
Scattering of the sunlight by water molecules
Reflection of the sun light from water surface
Interference of the sun light from water surface

ANSWER DOWNLOAD EXAMIANS APP