Physics Instrument used to study the behaviour of a vibrating string is : Hydrometer Sonometer Barometer Hygrometer Hydrometer Sonometer Barometer Hygrometer ANSWER DOWNLOAD EXAMIANS APP
Physics Cloudy nights are warmer compared to clear cloudless nights, because clouds mainly Reflect back the heat given by earth Produce heat and radiate it toward earth Absorb heat from the atmosphere send it towards earth Prevent cold waves from the sky descending on earth Reflect back the heat given by earth Produce heat and radiate it toward earth Absorb heat from the atmosphere send it towards earth Prevent cold waves from the sky descending on earth ANSWER DOWNLOAD EXAMIANS APP
Physics A bucket of water is hung from a spring balance. A piece of iron is suspended in the water without touching the sides or touching the bottom of the bucket. The reading of the spring balance Will decrease Does not change Will increase Varies with the increase of depth of the immersion of the iron piece Will decrease Does not change Will increase Varies with the increase of depth of the immersion of the iron piece ANSWER DOWNLOAD EXAMIANS APP
Physics Why does the sea appear blue in colour? Refraction of the sun light Scattering of the sunlight by water molecules Reflection of the sun light from water surface Interference of the sun light from water surface Refraction of the sun light Scattering of the sunlight by water molecules Reflection of the sun light from water surface Interference of the sun light from water surface ANSWER DOWNLOAD EXAMIANS APP
Physics If two bodies of different masses, initially at rest, are acted upon by the same force for the same time, then the both bodies acquire the same: Velocity Acceleration Momentum Kinetic energy Velocity Acceleration Momentum Kinetic energy ANSWER DOWNLOAD EXAMIANS APP
Physics The wavelength at which the peak of intensity of blackbody radiation occurs Increases with increase in temperature Decreases with increase in temperature Is the same at all temperatures Does not follow any pattern as temperature changes Increases with increase in temperature Decreases with increase in temperature Is the same at all temperatures Does not follow any pattern as temperature changes ANSWER DOWNLOAD EXAMIANS APP
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