SATHEE: Waves - Result Question 15

Waves - Result Question 15

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

(a) $1.21 \AA$

(b) $2.42 \AA$

(d) $3.63 \AA$

[1998]

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Answer:

Correct Answer: 15. (a)

Solution:

(a) Let $ℓ$ be length of string

$ℓ = (\frac{λ}{2}) 2 \Rightarrow λ = ℓ$

Hence, the wave length of standing wave

$\Rightarrow λ = ℓ = 1.21 \AA$

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Waves - Result Question 15

15. A standing wave having 3 nodes and 2 antinodes is formed between two atoms having a distance 1.21\AA between them. The wavelength of the standing wave is

Answer:

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