Question

Which light has highest and lowest wavelength.

Answer 1

Gamma rays have the highest energies, the shortest wavelengths, and the highest frequencies. Radio waves, on the other hand, have the lowest energies, longest wavelengths, and lowest frequencies of any type of EM radiation.

Answer 2

Red coloured light has the longest wavelength which is about 700 nanometres. Violet coloured light has smallest wavelength which is about 380 nanometres