a - i, b - ii, c - iv, d - iii
a - iii, b - ii, c - i, d - iv
a - i, b - ii, c - iii, d - iv
a - iv, b - iii, c - ii, d - i
Infrared waves → To treat muscular strain
Radio waves → for broadcasting
X-rays → To detect fracture of bones
Ultraviolet rays → Absorbed by the ozone layer of the atmosphere