देवनागरी लिपि में

The amount of light entering in eye is controlled by:

Which of the following is not a characteristic of simple harmonic motion (SHM)?

The density of water is maximum at which temperature?

The surface tension of water on adding detergent to it –

What is the SI unit of power?

Why does a fountain pen leak on an airplane flying at high altitude?

The polarization of electromagnetic waves demonstrates that they are:

Find the power if a force of 100 N displaces an object by 10 m in 5 seconds.

Which property of a wave is related to its frequency?  

A pond of water appears less deep due to –