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The vibrations of four air columns are r...

The vibrations of four air columns are represented in the adjoining figures. The ratio of frequencies `n_(p) : n_(q) : n_(r) : n_(s)` is

A

12 : 6 : 3 : 4

B

1 : 2 : 4 : 3

C

4 : 2 : 3 : 1

D

6 : 2 : 3 : 4

Text Solution

Verified by Experts

The correct Answer is:
B
`n_(p)=(V)/(4L),n_(q)=(V)/(2L)`
`n_(r)=(2V)/(2L),n_(s)=(3V)/(4L)`
`therefore n_(p):n_(q):n_(r):n_(s)=1:2:4:3`
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