Q 12-08-015NEETJEE MainEasy
An electromagnetic wave has a frequency of $3 \times 10^{10}$ Hz in vacuum. It belongs to the
Answer: (D) microwave region
$\lambda = \dfrac{c}{f} = \dfrac{3 \times 10^8}{3 \times 10^{10}} = 1$ cm, which is in the microwave region.
Solution by Sreeraj P, M.Sc Physics