Physics When two similar sources vibrate with slightly different frequencies, a regular rise and fall occurs in the loudness of tone. This phenomenon is known as Resonance Echo Doppler effect Beats Resonance Echo Doppler effect Beats ANSWER DOWNLOAD EXAMIANS APP
Physics What measures Air pressure? Barkometer Bolometer Spectrometer Barometer Barkometer Bolometer Spectrometer Barometer ANSWER DOWNLOAD EXAMIANS APP
Physics When a bullet is fired from a gun The gun moves forward The gun does not move The gun recoils with the same momentum as the bullet The gun jumps up The gun moves forward The gun does not move The gun recoils with the same momentum as the bullet The gun jumps up ANSWER DOWNLOAD EXAMIANS APP
Physics It is easier to roll a barrel full of coal tar than to pull it because 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 the full weight of the barrel comes into play when it is pulled ANSWER DOWNLOAD EXAMIANS APP
Physics The ''Greenhouse effect' is mainly due to increase in atmospheric Nitrogen Ozone Sulphur dioxide Carbon dioxide Nitrogen Ozone Sulphur dioxide Carbon dioxide ANSWER DOWNLOAD EXAMIANS APP
Physics Stars twinkle because the intensity of light emitted by them changes with time. the refractive index of the different layers of the earth's atmosphere ch the distance of the stars from the earth changes with time. None of these the intensity of light emitted by them changes with time. the refractive index of the different layers of the earth's atmosphere ch the distance of the stars from the earth changes with time. None of these ANSWER DOWNLOAD EXAMIANS APP
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