Question

In a resonance tube experiment t determine the speed of sound in air, a pipe of diameter 5 cm is used. The air column in pipe resonates with a tuning fork of frequency 480 Hz when the minimum length of the air column is 16 cm. If the speed of sound in air at room temperature = 6eta (in m//sec). Find eta

Answer 1

Thus The speed of sound is 336 m/s

Explanation:

Diameter of pipe = 5 cm

Frequency of tuning fork = 480 Hz

Length of air column = 16 cm

Fundamental frequency, f = v4 ( l + 0.6 r)

Speed of sound v = 4 f ( l + 0.6 r )

or v = (4) (480) [(0.16) + (0.6) (0.025)] = 336 m/s

Thus The speed of sound is 336 m/s