Arrange the following electromagnetic radiations per quantum in the order of increasing energy

• EM Waves

Arrange the following electromagnetic radiations per quantum in the order of increasing energy:

A: Blue light; B: Yellow light; C: X-ray; D: Radio wave

1. A, B, D, C
2. C, A, B, D
3. B, A, D, C
4. D, B, A, C

Solution

Radiation energy per quantum is

E = hν

As per EM spectrum, the increasing order of frequency and hence energy is

Radio wave < Yellow light < Blue light < X Ray

D < B < A < C

The correct option is D.