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 more surface area of the barrel is in contact with the road when it is pulled coal tar is a liquid and it flows in the barrel when it is rolled the rolling friction is much less than the sliding friction the full weight of the barrel comes into play when it is pulled more surface area of the barrel is in contact with the road when it is pulled coal tar is a liquid and it flows in the barrel when it is rolled the rolling friction is much less than the sliding friction ANSWER DOWNLOAD EXAMIANS APP
Physics The wave theory of light can explain Photoelectric effect Black body spectrum Comptom effect Interference of light Photoelectric effect Black body spectrum Comptom effect Interference of light ANSWER DOWNLOAD EXAMIANS APP
Physics The source of the Sun's energy is the process of Nuclear fusion Photoelectric emission Nuclear fission Thermionic emission Nuclear fusion Photoelectric emission Nuclear fission Thermionic emission ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following occurred first ? Albert Einstein propounded the General Theory of Relativity Max Planck unveiled the Quantum Theory Wright Brothers successfully flew an aircraft Guglielmo Marconi sent out the first wireless signals Albert Einstein propounded the General Theory of Relativity Max Planck unveiled the Quantum Theory Wright Brothers successfully flew an aircraft Guglielmo Marconi sent out the first wireless signals ANSWER DOWNLOAD EXAMIANS APP
Physics Which of these waves can be polarized ? Transverse waves on a string Sound waves in air Longitudinal waves on a string Light waves Transverse waves on a string Sound waves in air Longitudinal waves on a string Light waves ANSWER DOWNLOAD EXAMIANS APP
Physics In the absence of the earth's atmosphere, sky would appear Deep red Black White Blue Deep red Black White Blue ANSWER DOWNLOAD EXAMIANS APP
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