7. Our ear can hear the frequency of sound waves
Our ear can hear the frequency of sound waves
(a) 20 to 20,000 cycles/sec (b) 1000 to 2000 cycles/sec
(c) 5000 to 7000 cycles/sec (d) 5000 to 10,000 cycles/sec
EXPLANATION:
(a) These are called the limits of audibility. Actual value is 20 to 20000 cycles/sec.
(7)
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