Physics Stars twinkle because the refractive index of the different layers of the earth's atmosphere ch the distance of the stars from the earth changes with time. None of these the intensity of light emitted by them changes with time. the refractive index of the different layers of the earth's atmosphere ch the distance of the stars from the earth changes with time. None of these the intensity of light emitted by them changes with time. ANSWER DOWNLOAD EXAMIANS APP
Physics A rubber ball is dropped from a height of 2 metres. To what height will it rise if there is no loss of energy/velocity after rebounding ? 2 metres 4 metres 3 metres 1 metre 2 metres 4 metres 3 metres 1 metre ANSWER DOWNLOAD EXAMIANS APP
Physics Damp clothes are dried in spin dryers by the action of Non central forces Central forces Centrifugal forces Centripetal forces Non central forces Central forces Centrifugal forces Centripetal forces ANSWER DOWNLOAD EXAMIANS APP
Physics A solid ball of metal has a spherical cavity inside it. When the ball is heated the volume of the cavity will Remain unaffected Increase Decrease Have its shape changed Remain unaffected Increase Decrease Have its shape changed ANSWER DOWNLOAD EXAMIANS APP
Physics Radio activity is due to Unstable nucleus Stable electronic configu-ration Stable electronic configu-ration Stable nucleus Unstable nucleus Stable electronic configu-ration Stable electronic configu-ration Stable nucleus ANSWER DOWNLOAD EXAMIANS APP
Physics Due to temperature variation along a conductor, potential variation occurs along it. This phenomenon is known as Peltier effect Seebeck effect Thomson effect Joule effect Peltier effect Seebeck effect Thomson effect Joule effect ANSWER DOWNLOAD EXAMIANS APP
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