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 black Shining white Rough white Rough black Shining black Shining white Rough white Rough black ANSWER DOWNLOAD EXAMIANS APP
Physics A person standing on a railway platform listens to the whistles of arriving and departing trains. The whistle heard is Of higher pitch when train arrives The same in both cases in all respects Of higher intensity when train arrives Of higher pitch when train departs Of higher pitch when train arrives The same in both cases in all respects Of higher intensity when train arrives Of higher pitch when train departs ANSWER DOWNLOAD EXAMIANS APP
Physics If electric resistance is to be decreased, then the number of resistances should be connected in ________ Series Mixed arrangement Parallel None of these Series Mixed arrangement Parallel None of these ANSWER DOWNLOAD EXAMIANS APP
Physics After long periods of use, a grey spot develops on the inside of a bulb. This is because The tungsten filament evaporates and collects there Dust inside the bulb condenses on the top The heat of the bulb scorches the glass at the top Glass undergoes a change due to the heat The tungsten filament evaporates and collects there Dust inside the bulb condenses on the top The heat of the bulb scorches the glass at the top Glass undergoes a change due to the heat ANSWER DOWNLOAD EXAMIANS APP
Physics The cooling by a desert Cooler is based on: Air Rehydration Air dehydration Hot air replacement Evaporative Cooling Air Rehydration Air dehydration Hot air replacement Evaporative Cooling ANSWER DOWNLOAD EXAMIANS APP
Physics Find the resistance (in mega) of a wire of length 20m, cross sectional area 1 cm2 and made of a material of resistivity 200m. 80 4000 40 2000 80 4000 40 2000 ANSWER DOWNLOAD EXAMIANS APP
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