Physics Hot water is poured simultaneously in four metallic tumblers painted outside with different points. After some time the water will be found to have cooled most in the tumbler painted. Shining white Rough black Rough white Shining black Shining white Rough black Rough white Shining black ANSWER DOWNLOAD EXAMIANS APP
Physics In a railway track, two rails are joined end to end with a gap in between them because Accidents due to expansion in summer can be avoided Accidents due to contraction in winter can be avoided Steel can be saved Air-gaps are necessary for bearing the weight of running train Accidents due to expansion in summer can be avoided Accidents due to contraction in winter can be avoided Steel can be saved Air-gaps are necessary for bearing the weight of running train ANSWER DOWNLOAD EXAMIANS APP
Physics A drop of liquid assumes spherical shape because: Inter molecular forces are weak in liquids A sphere has the least surface area for a given volume A sphere has the largest surface area for a given volume Intermolecular forces are strong in liquids Inter molecular forces are weak in liquids A sphere has the least surface area for a given volume A sphere has the largest surface area for a given volume Intermolecular forces are strong in liquids ANSWER DOWNLOAD EXAMIANS APP
Physics When temperature difference between liquid and its surroundings is doubled, the rate of loss of heat will: Three times Remain same Four times Double Three times Remain same Four times Double ANSWER DOWNLOAD EXAMIANS APP
Physics A pond of water appears less deep due to Refraction Polarisation Diffraction Reflection Refraction Polarisation Diffraction Reflection ANSWER DOWNLOAD EXAMIANS APP
Physics A stone floor feels cold to the bare feet but a carpet on the same floor feels warm. This is because The human body maintains a constant temperature The carpet is a better conductor of heat than the stone The stone conveys the heat away from the feet more rapidly than the carpet The floor and carpet are at different temperatures The human body maintains a constant temperature The carpet is a better conductor of heat than the stone The stone conveys the heat away from the feet more rapidly than the carpet The floor and carpet are at different temperatures ANSWER DOWNLOAD EXAMIANS APP
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