In which year did the Government of India set up the

Which of the following dyes is used for colouring Paper and typewriters?

A storm is predicted if atmospheric pressure:

In the atmosphere ultraviolet rays are absorbed by –

Which of the following layers of the atmosphere makes Radio Communication possible?

The important unit of a microprocessor is –

This relationship between the angles of incidence and refraction and the indices of refraction of the two media is known as ________.

Mercalli scale is the instrument used for measuring the intensity of ___________.

Pulsars are :

Einstein was awarded Nobel Prize for –

The SI unit of Pressure is