Question

Name three radiations and their wavelength range which are invisible and beyond the violet end of the visible spectrum.

Answer 1

The three radiations which are invisible and beyond the violet end of the of the visible spectrum are →

1) Gamma Rays
Gamma Rays are discovered by the Henry Becquerel and Merry Curie.There wavelength is shorter that 0.1 Angstrom.

2) X - Rays
These are discovered by the Roentgen. There wavelength range is from 0.1 to 100 Angstrom.

3) Ultraviolet Rays.
These are discovered by the Prof. J Ritter. There wavelength range is from 100 to 400 Angstrom.