Physics Fill In The Blanks.

The velocity of electromagnetic wave is given by the relation ……………

Electromagnetic disturbance can be propagated through space ……………

When the light emitted from a source is made to pass through an absorbing material, the spectrum obtained is called …………… spectrum.

When the light emitted directly from a source is examined with a spectrometer, the spectrum obtained is …………… spectrum.

The structure of atoms can be studied with ……………

…………… is used for treatment of cancer.

…………… rays are used to detect forged documents.

The wave that is used in a radar communication system is ……………

Higher frequencies upto 54 mHz are used for ……………

The frequency range of X-rays is from ……………

The waves that are used in radio and television communication system is ……………

Radio frequency wave have a wavelength ranging from ……………to ……………

The existance of electromagnetic waves was confirmed experimentally by ……………

The electromagnetic waves travel in vacuum or free space with a velocity of ……………

In electromagnetic waves, the angle between electric and magnetic field vectors is ……………

An accelerated charge is a source of ……………

Electromagnetic waves are ……………