The change of the direction of a wavefront as a result of a change in the velocity of the wave in another medium is called

Similar Questions

In which of these fields are repulsive forces NOT experienced? I. Magnetic field II. Gravitati...

Ice of mass 50g at 0°C was completely melted by 70% of the total heat energy supplied. Calculate...

How far from a hill should a boy stand to hear the echo of his clap 1 .6s later? [Speed of sound in ...

A gramophone record takes 5s to reach its constant angular velocity of 4\(\pi\) rads-1 from rest. Fi...

The resistivity, \(\mathit{P}\), of a material of length l, cross-sectional area A, resistance R, is...

The thermos flask is designed to? ...

A bar magnet is divided into two pieces, which of the following statement is correct? ...

The magnitude of the force required to make an object of mass, m move with speed, v in a circular of...

A 10g mass placed on the pan of a spring balance causes an extension of 5cm. If a 15g mass is placed...

In a sound wave in air, the adjacent rarefactions and compressions are separated by a distance of 17...