Physics The threshold frequency is the frequency below which : Photo current is constant Photo current decreases with voltage Photo current increases with voltage Photo electric emission is not possible Photo current is constant Photo current decreases with voltage Photo current increases with voltage Photo electric emission is not possible ANSWER DOWNLOAD EXAMIANS APP
Physics The sensation of weightlessness in a spacecraft in an orbit is due to the Fact that spacecraft in the orbit has no energy Presence of gravity outside but not inside the spacecraft Acceleration in the orbit which is equal to the acceleration due to gravity outside Absence of gravity outside Fact that spacecraft in the orbit has no energy Presence of gravity outside but not inside the spacecraft Acceleration in the orbit which is equal to the acceleration due to gravity outside Absence of gravity outside ANSWER DOWNLOAD EXAMIANS APP
Physics A falling drop of rain water acquires the spherical shape due to Viscosity Gravitational force Surface Tension Atmospheric pressure Viscosity Gravitational force Surface Tension Atmospheric pressure ANSWER DOWNLOAD EXAMIANS APP
Physics In a filament type light bulb most of the electric power consumed appears as Fluorescent light Ultra-violet rays Infra-red rays Visible light Fluorescent light Ultra-violet rays Infra-red rays Visible light ANSWER DOWNLOAD EXAMIANS APP
Physics Why does water tank appear shallower when viewed from the top? Due to diffraction Due to total internal reflection Due to refraction Due to reflection Due to diffraction Due to total internal reflection Due to refraction Due to reflection ANSWER DOWNLOAD EXAMIANS APP
Physics The atmospheric layer reflecting radio waves is called Ionosphere Mesosphere Ozonosphere Stratosphere Ionosphere Mesosphere Ozonosphere Stratosphere ANSWER DOWNLOAD EXAMIANS APP
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