Physics What is the minimum distance (in metres) required to hear an echo? 17 10 21 13 17 10 21 13 ANSWER DOWNLOAD EXAMIANS APP
Physics Railway tracks are banked on curves the train may not fly off in the opposite direction necessary centripetal force may be obtained from the horizontal component of the weight of the train necessary centrifugal force may be obtained from the horizontal component weight of the train to avoid frictional force between the tracks and wheels the train may not fly off in the opposite direction necessary centripetal force may be obtained from the horizontal component of the weight of the train necessary centrifugal force may be obtained from the horizontal component weight of the train to avoid frictional force between the tracks and wheels ANSWER DOWNLOAD EXAMIANS APP
Physics Sound is heard over longer distances on rainy days because Sound travels faster in moist air Sound travels slowly in moist air Moist air absorbs sound Moist air does not absorb sound Sound travels faster in moist air Sound travels slowly in moist air Moist air absorbs sound Moist air does not absorb sound ANSWER DOWNLOAD EXAMIANS APP
Physics For which one of the following, ''Diodes' are generally used for? Rectification Amplification Modulation Filtration Rectification Amplification Modulation Filtration ANSWER DOWNLOAD EXAMIANS APP
Physics Two stones of unequal masses are thrown vertically up with the same velocity. Which of the following will happen? The heavier mass will reach greater height Both will reach the same height Any of them may reach greater height The lighter mass will reach greater height The heavier mass will reach greater height Both will reach the same height Any of them may reach greater height The lighter mass will reach greater height ANSWER DOWNLOAD EXAMIANS APP
Physics What device converts light energy to electrical energy? Heliostats Photodiode Thermocouple Photovoltaic cell Heliostats Photodiode Thermocouple Photovoltaic cell ANSWER DOWNLOAD EXAMIANS APP
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