Name two electromagnetic waves of wavelength smaller than that of violet light. State one use of each.

Name any two, electromagnetic waves, which have a frequency higher than that of violet light. State one use of each.

A type of electromagnetic wave has wavelength 50 Å. Name the wave.

Hertz produced electromagnetic wave by using

A type of electromagnetic wave has wavelength 50 Å. State one use of this type of wave.

Name the part of electromagnetic spectrum whose wavelength lies in the range of 10^-10m . Give its one use.

A type of electromagnetic wave has wavelength 50 Å. What is the speed of the wave in vacuum ?

The photon energy, in eV, for electromagnetic waves of wavelength 40 m is

Which of the following electromagnetic waves has smaller wavelength ?

Which electromagnetic radiation has wavelength greater than that of X-rays and smaller than that of visible light?

Statement-I : Electromagnetic waves with frequencies smaller than the critical frequency of ionosphere cannot be used for communication using sky wave propagation Statement-II : The refractive index of the ionosphere becomes very high for frequency.