Physics Rolling friction is caused by ________ Buoyancy Gravity Non-elastic effects Power dissipation Buoyancy Gravity Non-elastic effects Power dissipation ANSWER DOWNLOAD EXAMIANS APP
Physics Sun appears red in colour at sunrise and sunset due to Red light having longer wave length scatters away That sun comes out of the mountains That all other colours scatter away except red The fact that sun emits only red colour at that time Red light having longer wave length scatters away That sun comes out of the mountains That all other colours scatter away except red The fact that sun emits only red colour at that time ANSWER DOWNLOAD EXAMIANS APP
Physics For a body moving with uniform acceleration its final velocity equals ________ 2 x average velocity - initial velocity Average velocity + initial velocity Average velocity - initial velocity 2 x average velocity + initial velocity 2 x average velocity - initial velocity Average velocity + initial velocity Average velocity - initial velocity 2 x average velocity + initial velocity ANSWER DOWNLOAD EXAMIANS APP
Physics Quality of transmission depends upon Both (A) and (B) Nature of signal only Neither A nor B Nature of medium only Both (A) and (B) Nature of signal only Neither A nor B Nature of medium only ANSWER DOWNLOAD EXAMIANS APP
Physics The centre of gravity of a sprinter during the race lies Behind his feet To the left side of the body Ahead of his feet At the centre of the body Behind his feet To the left side of the body Ahead of his feet At the centre of the body ANSWER DOWNLOAD EXAMIANS APP
Physics A photon of X-ray has energy of 1 keV. A photon of visible radiation has energy of 3 eV. In this context, which one of the following statements is not correct? The speeds of both the photons in vacuum are different Both the photons have different energies. The frequency of X-ray photon is higher than the frequency of visible radiation photon. The wavelength of X-ray photon is less than the wavelength of visible radiation photon. The speeds of both the photons in vacuum are different Both the photons have different energies. The frequency of X-ray photon is higher than the frequency of visible radiation photon. The wavelength of X-ray photon is less than the wavelength of visible radiation photon. ANSWER DOWNLOAD EXAMIANS APP
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