Physics Due to temperature variation along a conductor, potential variation occurs along it. This phenomenon is known as Thomson effect Joule effect Peltier effect Seebeck effect Thomson effect Joule effect Peltier effect Seebeck effect ANSWER DOWNLOAD EXAMIANS APP
Physics To measure the speed of an approaching car a police officer shines Ultra high frequency waves on it Radio waves on it Light waves on it Microwaves on it Ultra high frequency waves on it Radio waves on it Light waves on it Microwaves on it ANSWER DOWNLOAD EXAMIANS APP
Physics Cloudy nights are warmer compared to clear cloudless nights, because clouds mainly 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 Reflect back the heat given by earth Produce heat and radiate it toward earth Absorb heat from the atmosphere send it towards earth ANSWER DOWNLOAD EXAMIANS APP
Physics When a bottle of perfume is opened in one corner of a room the smell spreads soon throughout the room. This is an example of Viscosity Capillarity Diffusion Surface tension Viscosity Capillarity Diffusion Surface tension ANSWER DOWNLOAD EXAMIANS APP
Physics Which is best used as a sound absorbing material in partition walls ? Glass - wool Stone chips Glass pieces Steel Glass - wool Stone chips Glass pieces Steel ANSWER DOWNLOAD EXAMIANS APP
Physics If there is a circular hole in a metal plate, what happens to the radius of the hole when the plate is heated? Decreases Depends upon the metal Unchanged Increases Decreases Depends upon the metal Unchanged Increases ANSWER DOWNLOAD EXAMIANS APP
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