1.

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 10NB. 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

Answer» Correct Answer - 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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