Physics Bubbles of air rise up through liquids due to Up thrust and surface tension Viscosity and buoyancy Air current over the liquid and buoyancy Surface tension and adherence Up thrust and surface tension Viscosity and buoyancy Air current over the liquid and buoyancy Surface tension and adherence ANSWER DOWNLOAD EXAMIANS APP
Physics Instrument used to study the behaviour of a vibrating string is : Sonometer Hydrometer Hygrometer Barometer Sonometer Hydrometer Hygrometer Barometer ANSWER DOWNLOAD EXAMIANS APP
Physics The base of an electric iron is brightly polished mainly To reduce heat loss by radiation To make it rust-proof To make it smooth and frictionless To make it more durable To reduce heat loss by radiation To make it rust-proof To make it smooth and frictionless To make it more durable ANSWER DOWNLOAD EXAMIANS APP
Physics Stars twinkle because the intensity of light emitted by them changes with time. the refractive index of the different layers of the earth's atmosphere ch None of these the distance of the stars from the earth changes with time. the intensity of light emitted by them changes with time. the refractive index of the different layers of the earth's atmosphere ch None of these the distance of the stars from the earth changes with time. ANSWER DOWNLOAD EXAMIANS APP
Physics A doppler effect occurs when a source of sound moves Both A & B None of these Towards you Away from you Both A & B None of these Towards you Away from you ANSWER DOWNLOAD EXAMIANS APP
Physics According to the Second Law of Motion, for a given force, acceleration is inversely proportional to the ________ of an object. Mass Volume Force Density Mass Volume Force Density ANSWER DOWNLOAD EXAMIANS APP
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