Physics - General Science Objective Questions and Answers for Competitive Exams


The sound production by a bat is

A subsonic
B audible
C infrasonic
D ultrasonic
Answer & Explanation
Option: [D]

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A Coal
B Iron
C Copper
D aluminum

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A It is a yellowish gas
B It is insoluble in water
C It is odorless gas
D Its aqueous solution turns red litmus blue

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A Gold
B Copper
C Silver
D Mercury

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A 1500 - 500 B.C.
B 2500 - 1750 B.C.
C 3000 - 1500 B.C.
D 5000 - 3500 B.C.

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