Wave Mechanics Question 747
Question: Length of a string tied to two rigid supports is 40 cm. Maximum length (wavelength in cm) of a stationary wave produced on it is
[AIEEE 2002]
Options:
A) 20
B) 80
C) 40
D) 120
Show Answer
Answer:
Correct Answer: B
Solution:
In fundamental mode of vibration wavelength is maximum
Therefore $ l=\frac{\lambda }{2}=40,cm,\Rightarrow \lambda =80,cm $
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