Question

The correct sequence of frequency for electromagnetic radiations in the electromagnetic spectrum is:

• A. X-rays > UV rays > Microwaves > Radio waves
• B. Radio waves > Microwaves > UV rays > X-rays
• C. UV rays > X-rays > Radio waves > Microwaves
• D. Radio waves > Microwaves > X-rays > UV rays

Answer 1

The correct option is A X-rays > UV rays > Microwaves > Radio waves

X-rays have frequencies in the range of ${10}^{16}$ to ${10}^{20}$ Hz.
UV rays have frequencies in the range of ${10}^{14}$ to ${10}^{16}$ Hz.
Microwaves have frequencies in the range of ${10}^8$ to ${10}^{10}$ Hz.
Radio waves have frequencies in the range of ${10}^4$ to ${10}^8$ Hz.
Hence, the correct option is (a).