Physics Superconductors are those elements Which conduct electricity only at super-high temperatures Whose conductivity is intermediate between metals and insulators Which turn into insulators at very low temperatures Whose resistance falls almost to zero at very low temperatures Which conduct electricity only at super-high temperatures Whose conductivity is intermediate between metals and insulators Which turn into insulators at very low temperatures Whose resistance falls almost to zero at very low temperatures ANSWER DOWNLOAD EXAMIANS APP
Physics In a refrigerator what produces the cooling ? None of these The evaporation of a volatile liquid The sudden expansion of a compressed gas The ice which deposits on the freezer None of these The evaporation of a volatile liquid The sudden expansion of a compressed gas The ice which deposits on the freezer ANSWER DOWNLOAD EXAMIANS APP
Physics The Hydraulic Break works on the principle of ________ . Pascal's Law Coulomb's law Bernouli's law Boyle's law Pascal's Law Coulomb's law Bernouli's law Boyle's law ANSWER DOWNLOAD EXAMIANS APP
Physics The spring balance works on the principle of ________ . Hooke's Law Bernoulli's principle Boyle's Law Pascal's Law Hooke's Law Bernoulli's principle Boyle's Law Pascal's Law ANSWER DOWNLOAD EXAMIANS APP
Physics Magnifying Glass is basically a Cylindrical lens Concave lens Convex lens Plano-concave lens Cylindrical lens Concave lens Convex lens Plano-concave lens ANSWER DOWNLOAD EXAMIANS APP
Physics Siphon will fail to work if: The densities of the liquid in the two vessels are equal. Both its limbs are of unequal length. The temperature of the liquids in the two vessels are the same. The level of the liquid in the two vessels are at the same height. The densities of the liquid in the two vessels are equal. Both its limbs are of unequal length. The temperature of the liquids in the two vessels are the same. The level of the liquid in the two vessels are at the same height. ANSWER DOWNLOAD EXAMIANS APP
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