Physics Sound becomes hazardous noise pollution at decibels? Above 50 db Above 30 db Above 80 db Above 120 db Above 50 db Above 30 db Above 80 db Above 120 db ANSWER DOWNLOAD EXAMIANS APP
Physics Conversion of sound energy into electrical energy is done by Loudspeaker Solar cell Microphone Gramophone Loudspeaker Solar cell Microphone Gramophone ANSWER DOWNLOAD EXAMIANS APP
Physics A permanent magnet can affect Electromagnets Magnets None of these Both A & B Electromagnets Magnets None of these Both A & B ANSWER DOWNLOAD EXAMIANS APP
Physics Which color deviates least when passing through a Prism Green Yellow Blue Red Green Yellow Blue Red ANSWER DOWNLOAD EXAMIANS APP
Physics In a particular system, the units of length, mass and time are chosen to be 10 cm, 10 g and 0.1 s respectively. The unit of force in this system will be equivalent to 1 N 0.1 N 10 N 100 N 1 N 0.1 N 10 N 100 N ANSWER DOWNLOAD EXAMIANS APP
Physics The sensation of weightlessness in a spacecraft in an orbit is due to the Absence of gravity outside Fact that spacecraft in the orbit has no energy Acceleration in the orbit which is equal to the acceleration due to gravity outside Presence of gravity outside but not inside the spacecraft Absence of gravity outside Fact that spacecraft in the orbit has no energy Acceleration in the orbit which is equal to the acceleration due to gravity outside Presence of gravity outside but not inside the spacecraft ANSWER DOWNLOAD EXAMIANS APP
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