Physics The force of friction between two surfaces will increase if: Air gap is created between the two surfaces The two surfaces are pressed harder A layer of lubricant is kept between the two surfaces Irregularities on both the surfaces are removed Air gap is created between the two surfaces The two surfaces are pressed harder A layer of lubricant is kept between the two surfaces Irregularities on both the surfaces are removed ANSWER DOWNLOAD EXAMIANS APP
Physics Light travels slowest in Glass Water Air Vacuum Glass Water Air Vacuum ANSWER DOWNLOAD EXAMIANS APP
Physics In mirrors the back surface is coated with a thin layer of : Mercury Red oxide Silver Silver nitrate Mercury Red oxide Silver Silver nitrate ANSWER DOWNLOAD EXAMIANS APP
Physics In order to make an electromagnet you need a Dry cell batteries All of these Thin coated copper wire Iron nail Dry cell batteries All of these Thin coated copper wire Iron nail ANSWER DOWNLOAD EXAMIANS APP
Physics If a boy sitting in a train, which is moving at a constant velocity, throws a ball straight up into the air, the ball will Fall behind him Fall into his hand Fall in front of him None of these Fall behind him Fall into his hand Fall in front of him None of these ANSWER DOWNLOAD EXAMIANS APP
Physics If a body moves with a constant speed in a circle No force acts on it No work is done on it Its velocity remains constant No acceleration is produced in it No force acts on it No work is done on it Its velocity remains constant No acceleration is produced in it ANSWER DOWNLOAD EXAMIANS APP
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