Question

Assertion `:` The images formed by total internal reflections are much brighter than those formed by mirrorrs or lenses.
Reason `:` There is no loss of intensity in total internal reflection.
A. If both Assertion and Reason are true and Reason is the correct explanation of Assertion.
B. If both Assertion and Reason are true but Reason is not correct explanation of Assertion.
C. If Assertion is true but Reason is false.
D. If Assertion is false but Reason is true.

Answer 1

Correct Answer - A
(a) In total internal reflection, 100% of incident light is reflected back into the same medium, and there is no loss of intensity, while in reflection from mirrors and refraction from lenses, there is always same loss of intensity. Therefore, images formed by total internal reflection are much brighter than those formed by mirrors or lenses