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Question

A wave pulse traveling on a two piece string, gets partially reflected and partially transmitted at the junction. The reflected wave is inverted in shape as compared to incident one. If the incident wave has wavelength λ and transmitted wave has λ, then

A
λ>λ
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B
λ=λ
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C
λ<λ
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D
none
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Solution

The correct option is C λ<λ
Reflected wave is inverted hence second medium is dir sec with respect to first medium. λ<λ

We know that,
λt<λt

λ<λ
Ans. (C)

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