Ncert Exercises & Solutions

Match the following:

Hint: X rays frequency is more than ultraviolet rays

The frequency values are as follows:

Name	Frequency	Uses
A. X-rays	$2 \times 10^{16} - 3 \times 10^{19}$ $Hz$	Medical pictures, medical testing
B. Ultraviolet wave (UV)	$7.9 \times 10^{14} - 2 \times 10^{16}$ $Hz$	Germicidal lamp
C. Long radio waves	$10^{0} - 10^{4}$ $Hz$	Signal transmission
D. Microwave	$1 \times 10^{9} - 5 \times 10^{11}$ $Hz$	Cooking radar