There is an inextensible string of linear density . If it is given th – McqOptions

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1.	There is an inextensible string of linear density . If it is given that = (k sqrt{ frac{T}{ }} ), then what is the group velocity of the string?
A.	( sqrt{ frac{T}{ }} )
B.	( sqrt{ frac{T}{ }} )
C.	( frac{ hbar}{2} sqrt{ frac{T}{ }} )
D.	( frac{1}{ hbar} sqrt{ frac{T}{ }} )
Answer» B. ( sqrt{ frac{T}{ }} )

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