Question 256: 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

In a tube of circular cross-section, the end correction $e$ for an open end is known to depend primarily on the
radius
(or equivalently, the diameter) of the tube. A commonly cited approximate formula for an open end is:
$ e \approx 0.6\,r \quad \bigl(	ext{or } e \approx 0.3\,d \bigr). $
Hence,
the larger the radius (or diameter) of the tube, the larger the end correction
.
Among the given options, the end correction will be greater if the tube is:
(D) widened
.

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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