Physics A hydrogen balloon floats up because of The pressure inside the balloon is more than the pressure outside it Weight of the balloon is less than the weight of air displaced by it. Air pressure decreases with decrease in weight Air pressure decreases with decrease in height The pressure inside the balloon is more than the pressure outside it Weight of the balloon is less than the weight of air displaced by it. Air pressure decreases with decrease in weight Air pressure decreases with decrease in height ANSWER DOWNLOAD EXAMIANS APP
Physics When a stone is thrown in the calm water of a pond the waves produced on the surface of water in the pond are Longitudinal Waves are not produced Transverse Both longitudinal and transverse Longitudinal Waves are not produced Transverse Both longitudinal and transverse ANSWER DOWNLOAD EXAMIANS APP
Physics Ozone layer above the surface of Earth provides a shield against Ultra-violet rays Infra-red rays X-rays Gamma rays Ultra-violet rays Infra-red rays X-rays Gamma rays ANSWER DOWNLOAD EXAMIANS APP
Physics Where are mesons found ? X-rays Laser beam Gamma rays Cosmic rays X-rays Laser beam Gamma rays Cosmic rays ANSWER DOWNLOAD EXAMIANS APP
Physics The audio signals of TV are Unmodulated Velocity modulated Frequency modulated Amplitude modulated Unmodulated Velocity modulated Frequency modulated Amplitude modulated ANSWER DOWNLOAD EXAMIANS APP
Physics When hot-water is sprinkled on a hotter glass tumbler, it breaks because Glass reacts chemically with water Glass suddenly contracts Water evaporates Glass suddenly expands Glass reacts chemically with water Glass suddenly contracts Water evaporates Glass suddenly expands ANSWER DOWNLOAD EXAMIANS APP
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