Physics A hydrogen balloon floats up because of The pressure inside the balloon is more than the pressure outside it Air pressure decreases with decrease in weight Air pressure decreases with decrease in height Weight of the balloon is less than the weight of air displaced by it. The pressure inside the balloon is more than the pressure outside it Air pressure decreases with decrease in weight Air pressure decreases with decrease in height Weight of the balloon is less than the weight of air displaced by it. ANSWER DOWNLOAD EXAMIANS APP
Physics Instrument for measuring blueness of the sky or ocean is called ________ Cyanometer Barometer Bathymeter Ceraunograph Cyanometer Barometer Bathymeter Ceraunograph ANSWER DOWNLOAD EXAMIANS APP
Physics The point where total mass of a body is supposed to be concentrated is known as Centre of gravity Centre of motion Centre of mass Dead centre Centre of gravity Centre of motion Centre of mass Dead centre ANSWER DOWNLOAD EXAMIANS APP
Physics Matter waves are Transverse waves De Broglie waves Longitudinal waves Electromagnetic waves Transverse waves De Broglie waves Longitudinal waves Electromagnetic waves ANSWER DOWNLOAD EXAMIANS APP
Physics The energy emitted by the Sun is due to Nuclear fission Chemical reaction All of these Nuclear fusion Nuclear fission Chemical reaction All of these Nuclear fusion ANSWER DOWNLOAD EXAMIANS APP
Physics The magnifying power of an astronomical telescope can be decreased by None of these Decreasing the focal length of the eyepiece Increasing the focal length of the objective Increasing the focal length of the eyepiece None of these Decreasing the focal length of the eyepiece Increasing the focal length of the objective Increasing the focal length of the eyepiece ANSWER DOWNLOAD EXAMIANS APP
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