> Q. A standing wave having $ 3 $ nodes and $ 2 $ antinodes is formed between two atoms having a distance $ 1.21, $ Å $ $ between them. The wavelength of the standing wave is – LIVE ANSWER TODAY

Q. A standing wave having $ 3 $ nodes and $ 2 $ antinodes is formed between two atoms having a distance $ 1.21, $ Å $ $ between them. The wavelength of the standing wave is

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A standing wave having $ 3 $ nodes and $ 2 $ antinodes is formed between two atoms having a distance $ 1.21, $ Å $ $ between them. The
wavelength of the standing wave is

Solution:

The given standing wave is shown in the figure.

As Iength of one loop or segment is $ frac{lambda}{2}, $ so length of 2 segments is $ 2 bigg(frac{lambda}{2}bigg). $

$ therefore hspace10mm2 frac{lambda}{2} = 1.21 mathring{A} , Rightarrow , , , lambda = 1.21 mathring{A} $

Solution Image

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