Question 312: Waves

Question

The end correction for the vibrations of air column in a tube of circular cross-section will be more if the tube is

Accepted Answer

Answer : (D) widened.
Explanation
The end correction $e$ for an open tube of circular cross-section is commonly approximated by
$ e \approx 0.6\,r $
where $r$ is the
radius
of the tube. Clearly, as the tubeÃ¢ÂÂs radius (or diameter)
increases
, the end correction
increases
as well. Therefore, when the tube is
widened
, the end correction becomes more significant.

Answer

reduced in length.

Answer

increased in length.

Answer

made thinner.

Answer

widened.

Waves

The end correction for the vibrations of air column in a tube of circular cross-section will be more if the tube is

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