wave_mechanics assertion_and_reason Question 25
Question: Assertion : The fundamental frequency of an open organ pipe increases as the temperature is increased. Reason : As the temperature increases, the velocity of sound increases more rapidly than length of the pipe.
Options:
A) If both assertion and reason are true and the reason is the correct explanation of the assertion.
B) If both assertion and reason are true but reason is not the correct explanation of the assertion.
C) If assertion is true but reason is false.
D) If the assertion and reason both are false.
E) If assertion is false but reason is true.
Show Answer
Answer:
Correct Answer: A
Solution:
The fundamental frequency of an open organ pipe is $ n=\frac{v}{2l} $ .
As temperature increases, both v and l increase but v increases more rapidly than l.
Hence, the fundamental frequency increases as the temperature increases.
BETA
