Physics The device used to change the speed of an electric fan is Rectifier Regulator Amplifier Switch Rectifier Regulator Amplifier Switch ANSWER DOWNLOAD EXAMIANS APP
Physics If the temperature of a place increases suddenly, the relative humidity Decreases Increases Fluctuates Remains constant Decreases Increases Fluctuates Remains constant ANSWER DOWNLOAD EXAMIANS APP
Physics When hot liquid is poured into a thick glass tumbler, it cracks because glass : Has high temperature coefficient of expansion Has a very low specific heat Is a bad conductor of heat so only inner surface expands Has low temperature coefficient of expansion Has high temperature coefficient of expansion Has a very low specific heat Is a bad conductor of heat so only inner surface expands Has low temperature coefficient of expansion ANSWER DOWNLOAD EXAMIANS APP
Physics Sound travels fastest in Vacuum Glass Air Water Vacuum Glass Air Water ANSWER DOWNLOAD EXAMIANS APP
Physics Mirage is due to: Unequal heating of different parts of the atmosphere Depletion of ozone layer in the atmosphere Magnetic disturbances in the atmosphere Equal heating of different parts of the atmosphere Unequal heating of different parts of the atmosphere Depletion of ozone layer in the atmosphere Magnetic disturbances in the atmosphere Equal heating of different parts of the atmosphere ANSWER DOWNLOAD EXAMIANS APP
Physics Atomic hydrogen has a life period of One hour One day One minute A fraction of a second One hour One day One minute A fraction of a second ANSWER DOWNLOAD EXAMIANS APP
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