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In the curve, half the wavelength is : ...

In the curve, half the wavelength is :
.

A

A B

B

B D

C

D E

D

A E

Text Solution

Verified by Experts

The correct Answer is:
B
As one wavelength = one crest + one trough, half the wavelength = one crest or one trough = AC (or CE) Further, `AC = AB + BC = BC + CD = BD` (as AB = CD).
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