Question

Assertion: Ultraviolet radiation are of higher frequency waves are dangerous to huhman beaing.
Reasion: Ultraviolet radiation are absorbed by the atmosphere
A. If both assertion and reason are true and reason is the correct explanation of assertion.
B. If both assertion and reasion are true but reason is not the correct explanation of assertion.
C. If assertion is true but reasion is false.
D. If assertion and reason both are false.

Answer 1

Correct Answer - b
The wavelength of thes waves ranges between `400 Å` to 100Å` that is smaller wavelength and higher frequency. They are absorbed by atmosphere and convert oxygen into ozone. They cause skin diseases and they are harmful to eye and cause permanent blindness.