Which of the following is a special kind of

A simple microscope consists of :

Which of the following instruments is correctly matched with its function?

I) Voltmeter - Measures potential difference 

Twinkling of the Stars is due to the phenomenon of 

S.I unit of Inductance is

Water gets cooled, when ice is immersed in it. It is because of the phenomenon of

Speed of sound in air is unaffected by change in :

What is the minimum escape velocity required for a rocket to leave Earth's gravitational pull?

‘Therm' is the unit of –

Why a person can jump higher on the Moon’s surface than the Earth?

Which of the following circuit elements is used to 'block' DC in an electronic circuit?