Physics Light Emitting Diodes (LED) is used in fancy electronic devices such as toys emit ultraviolet light X-rays radio waves visible light ultraviolet light X-rays radio waves visible light ANSWER DOWNLOAD EXAMIANS APP
Physics A hydrogen balloon floats up because of The pressure inside the balloon is more than the pressure outside it Weight of the balloon is less than the weight of air displaced by it. Air pressure decreases with decrease in weight Air pressure decreases with decrease in height The pressure inside the balloon is more than the pressure outside it Weight of the balloon is less than the weight of air displaced by it. Air pressure decreases with decrease in weight Air pressure decreases with decrease in height ANSWER DOWNLOAD EXAMIANS APP
Physics In the gamma decay of a nucleus Neither the mass number nor the atomic number of the nucleus changes The mass number of the nucleus does not change whereas its atomic number changes Both the mass number and the atomic number of the nucleus change The mass number of the nucleus changes whereas its atomic number does not change Neither the mass number nor the atomic number of the nucleus changes The mass number of the nucleus does not change whereas its atomic number changes Both the mass number and the atomic number of the nucleus change The mass number of the nucleus changes whereas its atomic number does not change ANSWER DOWNLOAD EXAMIANS APP
Physics Where is a transistor most likely to be found ? Wrist watch Hearing aid Fuse Fluorescent lamp Wrist watch Hearing aid Fuse Fluorescent lamp ANSWER DOWNLOAD EXAMIANS APP
Physics The pressure exerted by a 760 mm column of mercury at 0°C is known as 1 poise 1 atmosphere 1 pascal 1 bar 1 poise 1 atmosphere 1 pascal 1 bar ANSWER DOWNLOAD EXAMIANS APP
Physics An electric iron of 750 W is used for S hours per day. Then the energy consumed in one day by the iron is: 6 units 0.6 units 60 units 600 units 6 units 0.6 units 60 units 600 units ANSWER DOWNLOAD EXAMIANS APP
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