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A standing wave having 3 node and 2 anti...

A standing wave having 3 node and 2 antinode is formed between two atoms having a distance 1.21 A between the wavelength of the standing wave is

A

`1.21Å`

B

`1.41Å`

C

`6.05Å`

D

`3.63Å`

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The correct Answer is:
A
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