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 If a body moves with a constant speed in a circle No work is done on it No acceleration is produced in it No force acts on it Its velocity remains constant No work is done on it No acceleration is produced in it No force acts on it Its velocity remains constant ANSWER DOWNLOAD EXAMIANS APP
Physics The atmospheric layer reflecting radio waves is called Stratosphere Ionosphere Ozonosphere Mesosphere Stratosphere Ionosphere Ozonosphere Mesosphere ANSWER DOWNLOAD EXAMIANS APP
Physics What is the effective resistance (in Ω) of two resistors 20 Ω and 30 Ω connected in parallel? 24 36 12 50 24 36 12 50 ANSWER DOWNLOAD EXAMIANS APP
Physics Oil raise up the wick in a lamp. The principle involves volatility of oil the liquid state of oil the diffusion of oil through the wick capillary action phenomenon volatility of oil the liquid state of oil the diffusion of oil through the wick capillary action phenomenon ANSWER DOWNLOAD EXAMIANS APP
Physics What is a compound microscope? A microscope that has one lens. A microscope whose lenses are convex. A microscope that has two sets of lenses : an occular lens and an eyepiece. A microscope whose lenses are concave. A microscope that has one lens. A microscope whose lenses are convex. A microscope that has two sets of lenses : an occular lens and an eyepiece. A microscope whose lenses are concave. ANSWER DOWNLOAD EXAMIANS APP
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