Physics Light beam which is highly directional is called: Eraser Grazer Laser Maser Eraser Grazer Laser Maser ANSWER DOWNLOAD EXAMIANS APP
Physics The device used to convert solar energy into electricity is Photovoltaic cell Daniell cell Electrochemical cell Galvanic cell Photovoltaic cell Daniell cell Electrochemical cell Galvanic cell ANSWER DOWNLOAD EXAMIANS APP
Physics Tap water is placed in an open pad and allowed to evaporate. After some time the temperature of water Decreases rapidly Increases to a great extent Increases slightly Decreases slightly Decreases rapidly Increases to a great extent Increases slightly Decreases slightly ANSWER DOWNLOAD EXAMIANS APP
Physics How much mechanical work must be done to completely melt 1 gram of ice at 0°C ? 4.2 J 336 J 2268 J 80 J 4.2 J 336 J 2268 J 80 J ANSWER DOWNLOAD EXAMIANS APP
Physics Who measured the velocity of light first ? Newton Einstein Romer Galileo Newton Einstein Romer Galileo ANSWER DOWNLOAD EXAMIANS APP
Physics 'Parsec' is the unit measurement of Orbital velocity of giant stars Density of stars Brightness of heavenly bodies Astronomical distance Orbital velocity of giant stars Density of stars Brightness of heavenly bodies Astronomical distance ANSWER DOWNLOAD EXAMIANS APP
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