Assertion: Usually the voice of a woman has a higher frequency and shriller than that of a man.
reason : for human ear ,the range of audible frequency is roughly 20 to 20,000 Hz
a) A and R are true and R is the correct explanation of assertion
b) A and R are true and R is not the correct explanation of assertion
c) A is true but R is false
d) A is false but R is true
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Answer:A and R are true and R is not the correct explanation of assertion
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