The frequency, Which is audible to the human ear is___________
options:
a) 50 KHz
b) 20 KHz
c) 15000 KHz
d) 10000 KHz
Answers
Answer :- 20 to 20,000 KHz,
The commonly stated range of human hearing is
20 KHz
options:
a) 50 KHz
b) 20 KHz ✓
c) 15000 KHz
d) 10000 KHz
Explanation
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Hearing range describes the range of frequencies that can be heard by humans or other animals, though it can also refer to the range of levels. The human range is commonly given as 20 to 20,000 KHz, although there is considerable variation between individuals, especially at high frequencies, and a gradual loss of sensitivity to higher frequencies with age is considered normal. Sensitivity also varies with frequency, as shown by equal-loudness contours. Routine investigation for hearing loss usually involves an audiogram which shows threshold levels relative to a normal.
Several animal species are able to hear frequencies well beyond the human hearing range. Some dolphins and bats, for example, can hear frequencies up to 100,000 KHz. Elephants can hear sounds at 14–16 Hz, while some whales can hear infrasonic sounds as low as 7 Hz.
