Optics Question 74
Question: Assertion : Ultraviolet radiation are of higher frequency waves are dangerous to human being. Reason : Ultraviolet radiation are absorbed by the atmosphere
[AIIMS 1995]
Options:
A) If both assertion and reason are true and the reason is the correct explanation of the assertion.
B) If both assertion and reason are true but reason is not the correct explanation of the assertion.
C) If assertion is true but reason is false.
D) If the assertion and reason both are false.
E) If assertion is false but reason is true.
Show Answer
Answer:
Correct Answer: B
Solution:
The wavelength of these waves ranges between $ 4000{\AA} $ to $ 100{\AA} $ 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.
