Teaching BPSC बिहार मध्य विद्यालय (6 to 8) शिक्षक भर्ती 4.0 Mock Test General Science Physics Wave

The limit of audibility for healthy human is:

1

10 Hz to 20000 Hz

2

10 Hz to 2000 Hz

3

20 Hz to 20000 Hz

4

More than one of the above

5

None of the above

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