People use the silent whistle to call dogs whose frequency lies betwe – McqOptions

MCQOPTIONS

1.	People use the silent whistle to call dogs whose frequency lies between
A.	15,000 Hz to 18,000 Hz
B.	20,000 Hz to 25,000 Hz
C.	10,000 Hz to 15,000 Hz
D.	30,000 Hz to 35,000 Hz
Answer» C. 10,000 Hz to 15,000 Hz

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