Physics-Wave Motion

NEET Physics Wave Motion MCQ Question

Type: MCQ-diagram based-Easy-Class 11

Consider a glass tube partially filled with water where one end is in contact with water forming a node and the other end is open forming an antinode. What is the relationship between the wavelength λ\lambda and the length LL when the open end is an antinode?

Question diagram
A

λ=2Ln+12\lambda = \frac{2L}{n+\frac{1}{2}} for n=0,1,2,3,...n = 0, 1, 2, 3, ...

B

λ=2Ln\lambda = \frac{2L}{n} for n=1,2,3,...n = 1, 2, 3, ...

C

λ=L2n+1\lambda = \frac{L}{2n+1} for n=0,1,2,3,...n = 0, 1, 2, 3, ...

D

λ=Ln\lambda = \frac{L}{n} for n=1,2,3,...n = 1, 2, 3, ...

Correct Answer

Option A

Detailed Explanation

The relationship is given by λ=2Ln+12\lambda = \frac{2L}{n+\frac{1}{2}} for n=0,1,2,3,...n = 0, 1, 2, 3, ..., as the open end forms an antinode and the node condition is satisfied at the water contact.

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