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A wire of length 2L, is made by joining ...


A wire of length `2L`, is made by joining two wires `A` and `B` of same length but different radii `r` and `2r` and made of the same material. It is vibrating at a frequency such that the joint of the two wires forms a node. If the number of antionodes in wire `A` is P and that in `B` is `q` then the ratio `p:q` is:

A

`3:5`

B

`4:9`

C

`1:2`

D

`1:4`

Text Solution

Verified by Experts

The correct Answer is:
C
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Knowledge Check

  • Two wires of the same material and length but diameter in the ratic 1: 2 are stretched by the same load. The ratio of elastic potential energy per unit volume for the two wires is

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    `2:1`
    C
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    D
    `16:1`

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