Physics A white and smooth surface is Good absorber and bad reflector of heat Good absorber and good reflector of heat Bad absorber and bad reflector of heat Bad absorber and good reflector of heat Good absorber and bad reflector of heat Good absorber and good reflector of heat Bad absorber and bad reflector of heat Bad absorber and good reflector of heat ANSWER DOWNLOAD EXAMIANS APP
Physics A person lifts luggage of 20 kg from the ground and puts it on his head 2m above the ground. Calculate the work done by him. (g = 10 ) 200J 400J 40J 20 J 200J 400J 40J 20 J ANSWER DOWNLOAD EXAMIANS APP
Physics In a vacuum, all electromagnetic waves have the same Velocity Wavelenth All listed here Frequency Velocity Wavelenth All listed here Frequency ANSWER DOWNLOAD EXAMIANS APP
Physics If an object moves with constant velocity, It must have constant speed in constant direction It must have constant direction None of these It must have constant speed It must have constant speed in constant direction It must have constant direction None of these It must have constant speed ANSWER DOWNLOAD EXAMIANS APP
Physics A radioactive substance does not undergo any change (in mass or charge) during Beta-emission Oxidation Alpha-emission Gamma-emission Beta-emission Oxidation Alpha-emission Gamma-emission ANSWER DOWNLOAD EXAMIANS APP
Physics The sky appears blue due to None of these Mie scattering Rayleigh scattering Back scattering None of these Mie scattering Rayleigh scattering Back scattering ANSWER DOWNLOAD EXAMIANS APP
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