Physics Cloudy nights are warmer compared to clear cloudless nights, because clouds mainly 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 Absorb heat from the atmosphere send it towards earth ANSWER DOWNLOAD EXAMIANS APP
Physics Which waves cannot be transmitted through vacuum? Electromagnetic Sound Light Heat Electromagnetic Sound Light Heat ANSWER DOWNLOAD EXAMIANS APP
Physics The apparent weight of a man in a lift is less the real weight when : The lift is going up with an acceleration The lift is going up with uniform speed The lift is going down with uniform speed The lift is going down with an acceleration The lift is going up with an acceleration The lift is going up with uniform speed The lift is going down with uniform speed The lift is going down with an acceleration ANSWER DOWNLOAD EXAMIANS APP
Physics The coil wire in the electric room heater or electric cooking heater is called ________ Cells Circuit Filament Element Cells Circuit Filament Element ANSWER DOWNLOAD EXAMIANS APP
Physics In which form is the supplied heat energy stored during change in temperature of substance? Potential energy Heat energy Kinetic energy Both kinetic and potential energy Potential energy Heat energy Kinetic energy Both kinetic and potential energy ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following is an insulator? Germanium Carbon Glass Mercury Germanium Carbon Glass Mercury ANSWER DOWNLOAD EXAMIANS APP
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