Question

The correct order of energies for the electromagnetic spectrum is

• A. \(\text{UV rays} > \text{IR rays} > \text{Radio waves} > \text{X-rays}\)
• B. \(\text{Radio waves} > \text{UV rays} > \text{X-rays} > \text{IR rays}\)
• C. \(\text{X-rays} > \text{UV rays} > \text{IR rays} > \text{Radio waves}\)
• D. \(\text{IR rays} > \text{X-rays} > \text{Radio waves} > \text{UV rays}\)

Answer 1

The Correct Option is C

The energy of electromagnetic radiation is directly proportional to its frequency and inversely proportional to its wavelength. The electromagnetic spectrum, in decreasing order of energy, is as follows:

Gamma rays > X-rays > UV rays > Visible light > IR rays > Microwaves > Radio waves

Hence, among the given options:

X-rays have the highest energy
Followed by UV rays
Then IR rays
And finally radio waves with the lowest energy

Thus, the correct order of decreasing energy is: X-rays > UV rays > IR rays > Radio waves

The correct option is (C): \(\text{X-rays} > \text{UV rays} > \text{IR rays} > \text{Radio waves}\)