Physics The force of friction between two surfaces will increase if: The two surfaces are pressed harder Air gap is created between the two surfaces Irregularities on both the surfaces are removed A layer of lubricant is kept between the two surfaces The two surfaces are pressed harder Air gap is created between the two surfaces Irregularities on both the surfaces are removed A layer of lubricant is kept between the two surfaces ANSWER DOWNLOAD EXAMIANS APP
Physics Echo is heard due to Reflection Refraction Interference Scattering Reflection Refraction Interference Scattering ANSWER DOWNLOAD EXAMIANS APP
Physics The colours of stars depend on their Distance Radius Atmospheric pressure Temperature Distance Radius Atmospheric pressure Temperature ANSWER DOWNLOAD EXAMIANS APP
Physics Conversion of heat into electrical energy is achieved by using : Hydrometer Voltmeter Ammeter Thermocouple Hydrometer Voltmeter Ammeter Thermocouple ANSWER DOWNLOAD EXAMIANS APP
Physics It is dangerous to observe Solar eclipse with naked eyes because All radiations from sun initiate chemical reactions in eyes Infrared radiations from sun burn our retina Ultraviolet radiations from Sun burn our retina Cosmic rays reach eyes more during the eclipse All radiations from sun initiate chemical reactions in eyes Infrared radiations from sun burn our retina Ultraviolet radiations from Sun burn our retina Cosmic rays reach eyes more during the eclipse ANSWER DOWNLOAD EXAMIANS APP
Physics Electrical Energy is the energy of Electrons All listed here Neutrons Protons Electrons All listed here Neutrons Protons ANSWER DOWNLOAD EXAMIANS APP
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