Wave Mechanics Vibration Of String Question 28
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}=40cm\Rightarrow \lambda =80cm $