Physics The sensation of weightlessness in a spacecraft in an orbit is due to the Acceleration in the orbit which is equal to the acceleration due to gravity outside Presence of gravity outside but not inside the spacecraft Absence of gravity outside Fact that spacecraft in the orbit has no energy Acceleration in the orbit which is equal to the acceleration due to gravity outside Presence of gravity outside but not inside the spacecraft Absence of gravity outside Fact that spacecraft in the orbit has no energy ANSWER DOWNLOAD EXAMIANS APP
Physics An electron and a proton starting from rest get accelerated through potential difference of 100 kV. The final speed of the electron and the proton are Ve and Vp respectively. Which of the following relations is correct? Ve > Vp Ve = Vp Cannot be determined Ve < Vp Ve > Vp Ve = Vp Cannot be determined Ve < Vp ANSWER DOWNLOAD EXAMIANS APP
Physics A hydrogen balloon floats up because of Air pressure decreases with decrease in height The pressure inside the balloon is more than the pressure outside it Air pressure decreases with decrease in weight Weight of the balloon is less than the weight of air displaced by it. Air pressure decreases with decrease in height The pressure inside the balloon is more than the pressure outside it Air pressure decreases with decrease in weight Weight of the balloon is less than the weight of air displaced by it. ANSWER DOWNLOAD EXAMIANS APP
Physics Which measurement depends on gravitational force? Mass All of these Height Weight Mass All of these Height Weight ANSWER DOWNLOAD EXAMIANS APP
Physics When a ship enters the sea from a river It remains at the same level It rises a little It rises or sinks depending on the material it is made of It sinks a little It remains at the same level It rises a little It rises or sinks depending on the material it is made of It sinks a little ANSWER DOWNLOAD EXAMIANS APP
Physics If density of oxygen is 16 times that of hydrogen, what will be their corresponding ratio of velocity of sound? 0.084027777777778 0.044444444444444 0.052777777777778 0.16736111111111 0.084027777777778 0.044444444444444 0.052777777777778 0.16736111111111 ANSWER DOWNLOAD EXAMIANS APP
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