Physics
When a ball is thrown vertically upwards, which of the following quantities remains constant during its motion?

Energy
Velocity
Acceleration
Displacement

ANSWER DOWNLOAD EXAMIANS APP

Physics
The blue colour of sky is due to

Scattering of longer wavelengths of sunlight in the atmosphere
Reflection of sunlight
Refraction of sunlight
Scattering of shorter wavelengths of sunlight in the atmosphere

ANSWER DOWNLOAD EXAMIANS APP