

MCQOPTIONS
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1. |
Human ears can sense sound waves travel ling in air having wavelength of |
A. | \[{{10}^{-3}}m\] |
B. | \[{{10}^{-2}}m\] |
C. | 1m |
D. | \[{{10}^{2}}m\] |
Answer» D. \[{{10}^{2}}m\] | |