Assertion When a wave travels from a denser to a rarer medium, its amplitude increases. Reason In a rarer medium, speed of wave is more
Assertion When a wave travels from a denser to a rarer medium, its amplitude increases.
Reason In a rarer medium, speed of wave is more
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.
5 views
1 Answers
Correct Answer - A
(a) `A_(t)=((2v_(2))/((v_(1)+v_(2))A_(i)`
If `v_(2)htv_(b)` then `A_(t)gtA_(i)`
5 views
Answered