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(b) 20 Hz- 20 kHz
(d) Sound wave
(d) 17 m.
(d) 343 m/sec.
Audible frequency range is :-
(b) 20 Hz- 20 kHz
(b) 20 Hz- 20 kHz
See lessOut of the following, which is a longitudinal wave?
(d) Sound wave
(d) Sound wave
See lessThe minimum distance between the obstacle to hear echo is:
(d) 17 m.
(d) 17 m.
See lessThe speed of sound in air at 20 ° C is about.
(d) 343 m/sec.
(d) 343 m/sec.
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