The band spectrum is caused by

The production of band spectra is caused by

The band spectrum is obtained whenever the incandescent vapour of the excited substance are in their

Band spectrum is produced by

Band spectrum is produced by

Rainbow is an impure spectrum caused by sunlight.

The Ge behaves as semiconductor even though all electrons in the valence band form covalent bonds ? It is caused by the large width of

Ramu R: The visible spectrum is a part of the electromagnetic spectrum. Laxman (L) : The electromagnetic spectrum is a part of the visible spectrum.