Question

Assertion (A): The images formed by total internal reflection are much brighter than those formed by mirrors or lenses.
Reason (R) : There is no loss of intensity in total internal reflection
a) Both A and R are true and R is the correct explanation of the A.
b) Both A and R are true but R is not the correct explanation of the A.
c) A is true But R is false
d) A is false But R is true
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Answer 1

Answer:

correct ans : A

Step-by-step explanation:

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 some loss of intensity. Therefore images formed by total internal reflection are much brighter than those formed by mirrors or lenses.