The extension in a string, obeying Hooke's law, is x. The speed of sou – McqOptions

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1.	The extension in a string, obeying Hooke's law, is x. The speed of sound in the stretched string is v. If the extension in the string is increased to 1.5x, the speed of sound will be
A.	1.22v
B.	0.61v
C.	1.50v
D.	0.75v
Answer» B. 0.61v

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