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NEET UG PHYSICS MCQ: RAY OPTICS
1
Medium
1 of 1
Analyzing
+4 | -1
Assertion (A): When a wave travels from a denser to a rearer medium its amplitude increases.
Reason (R): In a rarer medium speed of wave is more.
Reason (R): In a rarer medium speed of wave is more.
View answer and explanation
Correct option: A
If both assertion and reason are true and reason is a correct explanation of the assertion.
Option A (If both assertion and reason are true and reason is a correct explanation of the assertion) is correct because the amplitude increases due to the higher speed of the wave in the rarer medium, conserving energy.
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