A plane electromagnetic wave of frequency `w_(0)` falls normally on the surface of a mirror approaching with a relativisitic velocity v. Then frequency of the reflected wave will be (given `beta=(v)/(c )`):

A plane electromagnetic wave of frequency omega_(0) falls normally on the surface of a mirror approching with a relativistic velocity V . Making use of the Doppler formula, find the frequency of the reflected wave. Simplify the obtained expression for the case Vlt lt c .

Electromagnetic waves of frequency ……. are reflected from ionosphere.

An electromagnetic wave of frequency v=3.0 MHz passes from vacuum into a dielectric medium with permittivity epsilon=4.0 . Then

The frequency of a sound wave is n and its velocity is v . If the frequency is increased to , 4n the velocity of the wave will be

If a wave of wavelength lambda is travelling in a medium with velocity V, then its frequency is

A plane electromagnetic wave travels in vacuum along z-direction. If the frequency of the wave is 40 MHz then its wavelength is

A stationary motion detector sends sound waves of frequency 3.00 MHz toward a truck approaching at a speed of 61.0 m/s. What is the frequency of the waves reflected back to the detector?

Light of wavelength 5000 A.falls on a plane reflecting surface. The frequency of reflected light is…