Physics Sound travels at the fastest speed in steel water air vacuum steel water air vacuum ANSWER DOWNLOAD EXAMIANS APP
Physics Tape recorder should not be kept near one of the following things : Magnet Radio Electrical switchboard Clock Magnet Radio Electrical switchboard Clock ANSWER DOWNLOAD EXAMIANS APP
Physics The frequency of ultrasound wave is typically Above 20 kHz Below 20 kHz Above 20,000 kHz Below 02 kHz Above 20 kHz Below 20 kHz Above 20,000 kHz Below 02 kHz ANSWER DOWNLOAD EXAMIANS APP
Physics The velocity of sound in air Increases with decrease of temperature Decreases with decrease of temperature Decreases with increase of temperature Does not depend on temperature Increases with decrease of temperature Decreases with decrease of temperature Decreases with increase of temperature Does not depend on temperature ANSWER DOWNLOAD EXAMIANS APP
Physics When a ring of metal is heated what happens to its hole ? Expands Contracts It expands or contracts according to its diameter It expands or contracts according to its coefficient of expansion Expands Contracts It expands or contracts according to its diameter It expands or contracts according to its coefficient of expansion ANSWER DOWNLOAD EXAMIANS APP
Physics Minimum number of unequal vectors which can give zero resultant are two more than four three four two more than four three four ANSWER DOWNLOAD EXAMIANS APP
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