Physics Stars twinkle because the intensity of light emitted by them changes with time. the distance of the stars from the earth changes with time. the refractive index of the different layers of the earth's atmosphere ch None of these the intensity of light emitted by them changes with time. the distance of the stars from the earth changes with time. the refractive index of the different layers of the earth's atmosphere ch None of these ANSWER DOWNLOAD EXAMIANS APP
Physics What is the unit of relative density? Kg/m2 Kg/m3 It has no unit Kg/m Kg/m2 Kg/m3 It has no unit Kg/m ANSWER DOWNLOAD EXAMIANS APP
Physics Scalar Quantities are Physical quantities which have magnitude only and no direction Physical quantities which have no magnitude only and only direction Physical quantities which have no magnitude and no direction Physical quantities which have magnitude only and direction Physical quantities which have magnitude only and no direction Physical quantities which have no magnitude only and only direction Physical quantities which have no magnitude and no direction Physical quantities which have magnitude only and direction ANSWER DOWNLOAD EXAMIANS APP
Physics Who is known as the 'father of quantum theory'? Max Planck Ernest Rutherford Albert Einstein Werner Heisenberg Max Planck Ernest Rutherford Albert Einstein Werner Heisenberg ANSWER DOWNLOAD EXAMIANS APP
Physics One watt-hour is equivalent to 3.6 x 10-3 J 3.6 x 103 J 6.3 x 10-7 J 6.3 x 103 J 3.6 x 10-3 J 3.6 x 103 J 6.3 x 10-7 J 6.3 x 103 J ANSWER DOWNLOAD EXAMIANS APP
Physics It is easier to roll a barrel full of coal tar than to pull it because the full weight of the barrel comes into play when it is pulled the rolling friction is much less than the sliding friction coal tar is a liquid and it flows in the barrel when it is rolled more surface area of the barrel is in contact with the road when it is pulled the full weight of the barrel comes into play when it is pulled the rolling friction is much less than the sliding friction coal tar is a liquid and it flows in the barrel when it is rolled more surface area of the barrel is in contact with the road when it is pulled ANSWER DOWNLOAD EXAMIANS APP
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