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Question

If the distance between four consecutive compressions of a sound wave is 4 cm, then the wavelength of the wave is equal to

A
34 cm
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B
1 cm
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C
2 cm
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D
43 cm
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Solution

The correct option is D 43 cm
Let the distance between two consecutive compressions be x. Distance between four consecutive compressions, AB = 4 cm ∴

Distance between two consecutive compressions, x=43 cm



The distance between two consecutive compressions or two consecutive rarefactions is known as wavelength of the wave. ⇒
Wavelength of the wave,λ=x=43cm

Hence, the correct answer is option (d).

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