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The vibrations of four air columns are r...

The vibrations of four air columns are represented in the figure below. 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,`
`n_(p) : n_(q) :n_(r ) : n_(s) = 1 : 2 : 3 :4`
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