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How is second resonance length (l(2)) in...

How is second resonance length `(l_(2))` in the resonance apparatus related to first resonance length `(l_(1))` ?

A

`l_(2)=l_(1)`

B

`l_(2)=2l_(1)`

C

`l_(2)=3l_(1)`

D

`l_(2) ` is slightly greater than `3l_(1)`

Text Solution

Verified by Experts

The correct Answer is:
D
As is known for theory, `l_(2)gt3l_(1)`.
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