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A wave y= 3mm sin (2pix-200 pit) is ...

A wave y= 3mm `sin (2pix-200 pit)` is

Propagating in the left string. It strikes the boundary at x=0 and is reflected partially and tranmitted partially. Choose the corrects statements (s)

A

The tension in strings is 10N

B

The amplitude of transmitted wave is 2 mm.

C

The wave undergoes a phse change of `pi` on reflection.

D

The wavelength of transmitted wave is `1/2` m

Text Solution

Verified by Experts

The correct Answer is:
ABCD
`(A) v=(omega)/k =100 m//s =sqrt(T/(10^(-3)))`
`rArr T=10 N`
`(B) A_(t) =(2V_(2))/(V_(1)+V_(2)) Ai=(2xx50)/150 xx3=2 mm`
(D) `lambdaf=v`, v is halfed so `lambda` is also halfed.
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