Physics Stars twinkle because None of these the refractive index of the different layers of the earth's atmosphere ch the distance of the stars from the earth changes with time. the intensity of light emitted by them changes with time. None of these the refractive index of the different layers of the earth's atmosphere ch the distance of the stars from the earth changes with time. the intensity of light emitted by them changes with time. ANSWER DOWNLOAD EXAMIANS APP
Physics A person lifts luggage of 20 kg from the ground and puts it on his head 2m above the ground. Calculate the work done by him. (g = 10 ) 200J 20 J 400J 40J 200J 20 J 400J 40J ANSWER DOWNLOAD EXAMIANS APP
Physics The domain theory of magnetism applies to Silver Cobalt Aluminium Copper Silver Cobalt Aluminium Copper ANSWER DOWNLOAD EXAMIANS APP
Physics The characteristic invalid for heat radiation is that it travels : In a straight line With the speed of light In all directions Heating the medium through which it passes In a straight line With the speed of light In all directions Heating the medium through which it passes ANSWER DOWNLOAD EXAMIANS APP
Physics What should a person on a freely rotating turn table do to decrease his (angular) speed ? Sit down with raised hands Bring his hands together Raise his hands up Spread his hands outwards Sit down with raised hands Bring his hands together Raise his hands up Spread his hands outwards ANSWER DOWNLOAD EXAMIANS APP
Physics Sound waves do not show the phenomenon of Polarisation Interference Diffraction Refraction Polarisation Interference Diffraction Refraction ANSWER DOWNLOAD EXAMIANS APP
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