Question

What is the effect of increase in temperature on the frequency of sound produced by an organ pipe?

• A. increases
• B. decreases
• C. no effect
• D. erratic change

Answer 1

The correct option is A increases

A change in temperature will result in a change in the speed of sound.

$v\propto \sqrt{T}$.

The frequency of a flute organ pipe is proportional to the speed of sound.

$f\propto v$

Thus $f\propto \sqrt{T}$

Hence as temperature increases, frequency of sound produced by an organ pipe increases.