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MHT CET 2024 (9 May, Shift 2) · Stationary Waves & Vibrating Strings

Stationary Waves & Vibrating Strings question from MHT CET 2024 (9 May, Shift 2)

Q41MHT CET 2024 · 9 MAY · SHIFT 2Easy

Stationary Waves & Vibrating Strings

A stationary wave is formed having 3 nodes along the length of the string 90 cm. The wavelength of the wave is

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Answer: (c)

3 nodes on a string means 2 loops; each loop is $\lambda/2$ .
$L = 2 \times \dfrac{\lambda}{2} = \lambda$ .
$\lambda = 90\text{ cm}$ .
So the answer is (c) $90\text{ cm}$ .

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