Physics Stars twinkle because None of these the refractive index of the different layers of the earth's atmosphere ch the intensity of light emitted by them changes with time. the distance of the stars from the earth changes with time. None of these the refractive index of the different layers of the earth's atmosphere ch the intensity of light emitted by them changes with time. the distance of the stars from the earth changes with time. ANSWER DOWNLOAD EXAMIANS APP
Physics In a Carnot engine when heat is taken from the source, its temperature Increases Decreases Remains constant Decreases and then remains constant Increases Decreases Remains constant Decreases and then remains constant ANSWER DOWNLOAD EXAMIANS APP
Physics The radiation initially produced in fluorescent tube is Microwaves X-rays Infrared Ultraviolet Microwaves X-rays Infrared Ultraviolet ANSWER DOWNLOAD EXAMIANS APP
Physics Rate of change of momentum is Velocity Area Force Pressure Velocity Area Force Pressure ANSWER DOWNLOAD EXAMIANS APP
Physics Full form of CFL used in place of electric bulbs is Compact fluorescent lamp Closed fluorescent lamp Constantan filament lamp Closed filament lamp Compact fluorescent lamp Closed fluorescent lamp Constantan filament lamp Closed filament lamp ANSWER DOWNLOAD EXAMIANS APP
Physics What is the reason for twinkling of stars ? Total internal reflection Atmospheric refraction Atmospheric reflection Dispersion of light Total internal reflection Atmospheric refraction Atmospheric reflection Dispersion of light ANSWER DOWNLOAD EXAMIANS APP
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