The electromagnetic wave is of frequency range from `5xx10^5 Hz` to `10^9Hz` are called..............

The electromagnetic waves of frequency range 3xx10^18 to 5xx10^22 are called...........

The electromagnetic waves of frequency range 100 to 300 Hz are used in

Find the wavelength of electromagnetic waves of frequency 5× 10^19 Hz in free space.

Find the wavelength of electromagnetic waves of frequency 9× 10^19 Hz in free space.

Find the wavelength of electromagnetic waves of frequency 3xx10^(12) Hz in free space

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