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NTA Abhyas JEE Main2020PhysicsWaves and SoundPractice

A standing wave having 3 nodes and 2 antinodes is formed between two atoms having a distance 1 . 21 A ∘ between them. The wavelength of the standing wave is

Options

  1. A1 . 21   A ∘
  2. B1 . 42   A ∘
  3. C6 . 05   A ∘
  4. D3 . 63   A ∘

Correct answer

A. 1 . 21   A ∘

Step-by-step solution

The given standing wave is shown in the figure As the length of loop or segment is λ 2 So the length of 2 segments is 2 λ 2 ∴ 2 λ 2 = 1.21   A ∘ ⟹ λ = 1.21   A ∘

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