Question

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

A : Blue light
B : Yellow light
C : X-ray
D : Radiowave

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

Answer 1

Answer: (A)

D,B,A,C

$E=h\nu$

where $\nu :$ frequency

Given waves in increasing order of frequency are:

Radiowaves<Yellow light<Blue light<X-rays