Physics The scientist who first sent electromagnetic waves to distant places is Heinrich Hertz John Logie Baird James Clerk Maxwell Thomas Alva Edison Heinrich Hertz John Logie Baird James Clerk Maxwell Thomas Alva Edison ANSWER DOWNLOAD EXAMIANS APP
Physics Radio telescopes are better than optical telescopes because they can work during the day and night All of these they can detect faint galaxies which no optical telescope can they can work even in cloudy conditions they can work during the day and night All of these they can detect faint galaxies which no optical telescope can they can work even in cloudy conditions ANSWER DOWNLOAD EXAMIANS APP
Physics A device used for converting a.c. into d.c. is called Transformer Induction coil Dynamo Rectifier Transformer Induction coil Dynamo Rectifier ANSWER DOWNLOAD EXAMIANS APP
Physics During hot weather, the fan produces a feeling of comfort. This is because Fan supplies cool air Fan cools the air Conductivity of air increases Our perspiration eva-porates rapidly Fan supplies cool air Fan cools the air Conductivity of air increases Our perspiration eva-porates rapidly ANSWER DOWNLOAD EXAMIANS APP
Physics In heating frozen foods in sealed pouches in a microwaves, why do you first poke holes in the pouch? To allow the aroma of the food to come out through the holes To allow the microwaves to get into the food through the holes To prevent the steam pressure from bursting open the pouch To allow the heat to get into the food through the hole To allow the aroma of the food to come out through the holes To allow the microwaves to get into the food through the holes To prevent the steam pressure from bursting open the pouch To allow the heat to get into the food through the hole ANSWER DOWNLOAD EXAMIANS APP
Physics Gamma rays are emitions that have Mass but no charge Both mass and charge Charge but no mass Neither mass nor charge Mass but no charge Both mass and charge Charge but no mass Neither mass nor charge ANSWER DOWNLOAD EXAMIANS APP
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