The Ratio of the total distance is travelled by a body to the total time taken by it is its.

Alternating current is converted to direct current – 

What is the decibel level of sound produced by two persons in conversation? 

If the resistance of a conductor is doubled , the current gets halved. This is because:

A raised hammer possesses:

How many calories are gained by drinking a glass of water?

The velocity of wind is measured by –

Whose unit is Farad?