यदि केंद्र सरकार का

Panchayat was added to our constitution through which amendment? 

As an air bubble ascends from the bottom of a lake to the surface, what happens to its size?

What is the cause of hypermetropia?

Which function is performed by rectifiers?

In the atmosphere ultraviolet rays are absorbed by –

Which Instrument is used to measure depth of ocean?

Which of the following does NOT exemplify Potential Energy?

‘Therm' is the unit of –

The SI unit of Pressure is

What is the term for the center of the reflecting surface of a spherical mirror?