Which of the following is not the  governor-general of

Hyperrnetropia or longsight can be corrected by using :

The energy that can harness heat stored below the earth's surface is known as –

Which property of a wave is related to its frequency?  

The magnetic equator is closely associated with which of the following?

Which of the following is a nonrenewable source of energy?  

The threshold wavelength for a photoelectric surface is 540 nm. Will a light of energy 2.5 eV cause photoemission?

What is the point called where the total mass of a body is considered to be concentrated?

What is the speed of sound in air at room temperature (approx)?  

In Newton’s law of cooling, the rate of temperature fall is proportional to:

A body is projected upwards with an initial velocity u . At the highest point, what is its acceleration?