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When I m long metallic rod is vertically...

When I m long metallic rod is vertically dropped it strikes the solid metallic floor and 1.2 kHz. Find speed of this sound wave in the rod.

A

`600 m//s`

B

`2400 m//s`

C

`1800 m//s`

D

`1200 m//s`

Text Solution

Verified by Experts

The correct Answer is:
B
According to formula,
`v = lamda f `
`= f _(min) lamda _(max)`
`= f _(min ) xx 2L`
`= 1.2 xx 10 ^(3) xx 2 xx 1`
`= 2400 m//s`
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