Physics Which best describes how air moves during convection? Warm air falls down Air always falls down Cool air falls down Cool air is replaced by warm air Warm air falls down Air always falls down Cool air falls down Cool air is replaced by warm air ANSWER DOWNLOAD EXAMIANS APP
Physics Which one of the following is used for sun glasses ? Pyrex glass Flint glass Crooks glass Crystal glass Pyrex glass Flint glass Crooks glass Crystal glass ANSWER DOWNLOAD EXAMIANS APP
Physics Small bubbles are perfectly spherical because of Viscosity Pressure Surface tension Gravity Viscosity Pressure Surface tension Gravity ANSWER DOWNLOAD EXAMIANS APP
Physics To measure the speed of an approaching car a police officer shines Radio waves on it Microwaves on it Ultra high frequency waves on it Light waves on it Radio waves on it Microwaves on it Ultra high frequency waves on it Light waves on it ANSWER DOWNLOAD EXAMIANS APP
Physics Speed of light is maximum in ________ Liquids Gases Solids Vacuum Liquids Gases Solids Vacuum ANSWER DOWNLOAD EXAMIANS APP
Physics Light year is a unit of Time Light Distance Intensity of light Time Light Distance Intensity of light ANSWER DOWNLOAD EXAMIANS APP
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