Physics Mach number is used in connection with the speed of aircraft sound spacecraft ships aircraft sound spacecraft ships ANSWER DOWNLOAD EXAMIANS APP
Physics The force of friction between two surfaces will increase if: Air gap is created between the two surfaces Irregularities on both the surfaces are removed The two surfaces are pressed harder A layer of lubricant is kept between the two surfaces Air gap is created between the two surfaces Irregularities on both the surfaces are removed The two surfaces are pressed harder A layer of lubricant is kept between the two surfaces ANSWER DOWNLOAD EXAMIANS APP
Physics In very cold countries alcohol is used as a thermometric liquid because Alcohol is a poor conductor of heat It will not stick to the glass tube Alcohol can be coloured for its level to be seen easily Its freezing point is very low Alcohol is a poor conductor of heat It will not stick to the glass tube Alcohol can be coloured for its level to be seen easily Its freezing point is very low ANSWER DOWNLOAD EXAMIANS APP
Physics Why do birds not have respiratory trouble at the time of flying at high altitude ? They fly inactively Their lungs are very large They have extra air sacs They use less oxygen They fly inactively Their lungs are very large They have extra air sacs They use less oxygen ANSWER DOWNLOAD EXAMIANS APP
Physics Visible light has a higher frequency than Ultra violet Radio waves X rays All listed here Ultra violet Radio waves X rays All listed here ANSWER DOWNLOAD EXAMIANS APP
Physics Steel is more elastic than rubber because it : Is deformed very easily Requires larger deforming force Is harder than rubber Is never deformed Is deformed very easily Requires larger deforming force Is harder than rubber Is never deformed ANSWER DOWNLOAD EXAMIANS APP
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