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Physics-(general)

NEET Physics (general) MCQ Question

Type: MCQ-numerical-Medium-Class 11

A glass tube partially filled with water has one end as a node and the other as an antinode. If the length of the tube is 0.85 m, what is the possible wavelength of the stationary wave in the tube for n = 1?

A

13 m

B

0.70 m

C

26 m

D

70 m

Correct Answer

Option A

Detailed Explanation

Using the formula for antinode at one end, L=(n+12)λ2L = (n + \frac{1}{2})\frac{\lambda}{2}, we find λ=2Ln+12=2×0.851+12=1.13 m\lambda = \frac{2L}{n + \frac{1}{2}} = \frac{2 \times 0.85}{1 + \frac{1}{2}} = 1.13 \text{ m}.

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