Physics What is the principle of a ''Life Jacket"? The person can sit on it like a raft It increases the volume of the person to keep him afloat It decreases the volume of the person to keep him afloat It provides oxygen to a drowning person The person can sit on it like a raft It increases the volume of the person to keep him afloat It decreases the volume of the person to keep him afloat It provides oxygen to a drowning person ANSWER DOWNLOAD EXAMIANS APP
Physics Air coolers are more suitable for Cool and dry climate Hot and humid climate Hot and dry climate Cool and humid climate Cool and dry climate Hot and humid climate Hot and dry climate Cool and humid climate ANSWER DOWNLOAD EXAMIANS APP
Physics Electromagnetic waves are transverse in nature is evident by Reflection Polarisation Diffraction Interference Reflection Polarisation Diffraction Interference ANSWER DOWNLOAD EXAMIANS APP
Physics A potentiometer wire is 100 cm long and a constant potential difference is maintained across it. Two cells are connected in series first to support one another and then in opposite direction. The balance points are obtained at 50 cm and 10 cm from the positive end of the wire in the two cases. The ratio of the emf's is : 0.12777777777778 0.12638888888889 0.21111111111111 0.20902777777778 0.12777777777778 0.12638888888889 0.21111111111111 0.20902777777778 ANSWER DOWNLOAD EXAMIANS APP
Physics Ultra violet radiations of the Sun do not reach the earth because, earth's atmosphere is surrounded by Carbon dioxide Ozone Chlorine Ammonia Carbon dioxide Ozone Chlorine Ammonia ANSWER DOWNLOAD EXAMIANS APP
Physics The cooling by a desert Cooler is based on: Air dehydration Evaporative Cooling Air Rehydration Hot air replacement Air dehydration Evaporative Cooling Air Rehydration Hot air replacement ANSWER DOWNLOAD EXAMIANS APP
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