Ncert Exercises & Solutions

A hypothetical electromagnetic wave is shown in figure. Find out the wavelength of the radiation.

Wavelength is the distance between two successive peaks or two successive throughs of a wave.

Therefore,

λ = 4 \times 2.16 pm = 8.64 pm

= 8.64 \times 10^{- 12} m [∵ 1 pm = 10^{- 12} m]