Question
which of the following is minimum audible wavelength at room temperature?
(1) 20mm
(2) 20cm
(3)20m
(4) 20km
Joshi sir comment
maximum audible frequency = 20000 Hz
Velocity of sound = 340 m/s
so minimum audible wavelength = 340/20000 m = 34000/20000 cm = 340/20 mm = 17 mm approx 20 mm
Read 2 Solution.
SHAN 10 year ago
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RAMESHWARI DILIP FEGADE 9 year ago
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