Question

Arrange the following electromagnetic radiations in the order of increasing energy per quantum:
A : Blue light
B : Yellow light
C : X-ray
D : Radio wave

• A. D,B,A,C
• B. A,B,D,C
• C. C,A,B,D
• D. B,A,D,C

Answer 1

The correct option is A D,B,A,C

$E=h\nu$
where $\nu$ is the frequency
Given waves in increasing order of frequency are:
Radiowaves < Yellow light < Blue light < X-rays