Physics Why does a cannon recoil after firing ? Newton's first law of motion Backward thrust of gases produced Newton's third law of motion Conservation of energy Newton's first law of motion Backward thrust of gases produced Newton's third law of motion Conservation of energy ANSWER DOWNLOAD EXAMIANS APP
Physics Temperature of distant luminous bodies can be determined by Mercury thermometers Colour thermometers Pyrometers Gas thermometers Mercury thermometers Colour thermometers Pyrometers Gas thermometers ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following is not true about X-rays? Travel with the speed of light Can be reflected or refracted Can affect photographic plates Have low penetrating power Travel with the speed of light Can be reflected or refracted Can affect photographic plates Have low penetrating power ANSWER DOWNLOAD EXAMIANS APP
Physics Stars twinkle because the intensity of light emitted by them changes with time. the refractive index of the different layers of the earth's atmosphere ch None of these the distance of the stars from the earth changes with time. the intensity of light emitted by them changes with time. the refractive index of the different layers of the earth's atmosphere ch None of these the distance of the stars from the earth changes with time. ANSWER DOWNLOAD EXAMIANS APP
Physics A white and smooth surface is Good absorber and good reflector of heat Good absorber and bad reflector of heat Bad absorber and good reflector of heat Bad absorber and bad reflector of heat Good absorber and good reflector of heat Good absorber and bad reflector of heat Bad absorber and good reflector of heat Bad absorber and bad reflector of heat ANSWER DOWNLOAD EXAMIANS APP
Physics An atom with more neutrons than protons is called Compound None of these Isotope Element Compound None of these Isotope Element ANSWER DOWNLOAD EXAMIANS APP
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