The frequency of an electromagnetic wave is `5 xx 10^19` Hz. What will be its wavelength? Give uses of this wave.

In a region of free space the average electric field of an electromagnetic wave is 9 xx 10^-4 NC^-1 . What is the magnetic field in that region?

Amplitude of electric field of a plane electromagnetic wave is 48 V. m^(-1) . What is the amplitude of the magnetic field of the wave ?

The form of an electromagnetic wave is— B=10xx 10^-7sin{2xx 10^11t- 10^3x} T. What is the expression-for electric vector ?

Find the wavelength of electromagnetic waves of frequency 5xx10^(19) Hz in free space. Where is this type of wave used ?

Electron number density in a layer of ionosphere is 4 xx 10^(5) cm^(-3) . For an electromagnetic wave of frequency 40 MHz, what would be the refractive index of that layer?

When the frequency of an electromagnetic wave and the amplitude of its associated magnetic field at a point are 10^8 Hz and 10^(-10) T respectively, then the amplitude of electric field be nxx10^(-2) V.m^(-1) . Find the value of n.

A charged particle oscillates about its mean equilibrium position with a frequency of 10^9 Hz. The electromagnetic wave produced - (A) Will have frequency of 10^9 Hz. (B) Will have frequency of 2 xx 10^9 Hz. (C) Will have a wavelength of 0.3 m. (D) Fall in the region of radio waves.

If the frequency of a sound wave is 250 Hz and wavelenth is 1.32 m, then what is the velocity of the wave

To which part of the electromagnetic spectrum does a wave of frequency 3xx10^13 Hz belong?