Wave Mechanics Question 1110
Question: An empty vessel is partially filled with water, then the frequency of vibration of air column in the vessel
[KCET 2000]
Options:
A) Remains same
B) Decreases
C) Increases
D) First increases then decreases
Show Answer
Answer:
Correct Answer: C
Solution:
For closed pipe in general $ n=\frac{v}{4l}(2N-1) $
Therefore $ n\propto \frac{1}{l} $ i.e. if length of air column decreases frequency increases.
BETA
