Physics The velocity of sound in air Decreases with decrease of temperature Decreases with increase of temperature Increases with decrease of temperature Does not depend on temperature Decreases with decrease of temperature Decreases with increase of temperature Increases with decrease of temperature Does not depend on temperature ANSWER DOWNLOAD EXAMIANS APP
Physics If electric resistance is to be decreased, then the number of resistances should be connected in ________ Series Mixed arrangement Parallel None of these Series Mixed arrangement Parallel None of these ANSWER DOWNLOAD EXAMIANS APP
Physics What is the unit of the physical quantity "Inductance"? Weber Farad Henry Tesla Weber Farad Henry Tesla ANSWER DOWNLOAD EXAMIANS APP
Physics The energy obtained from atoms is known as ________ Chemical energy Solar energy Heat energy Nuclear energy Chemical energy Solar energy Heat energy Nuclear energy ANSWER DOWNLOAD EXAMIANS APP
Physics 1 m/s equals ________ km/hr 43967 43969 16/5 18/5 43967 43969 16/5 18/5 ANSWER DOWNLOAD EXAMIANS APP
Physics Cloudy nights are warmer compared to clear cloudless nights, because clouds mainly Absorb heat from the atmosphere send it towards earth Produce heat and radiate it toward earth Prevent cold waves from the sky descending on earth Reflect back the heat given by earth Absorb heat from the atmosphere send it towards earth Produce heat and radiate it toward earth Prevent cold waves from the sky descending on earth Reflect back the heat given by earth ANSWER DOWNLOAD EXAMIANS APP
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