Physics It is easier to roll a stone up a sloping road than to lift it vertical upwards because Work done in rolling a stone is less than in lifting it. Work done in lifting the stone is equal to rolling it. Work done in rolling is more than in lifting. Work done in both is same but the rate of doing work is less in rolling. Work done in rolling a stone is less than in lifting it. Work done in lifting the stone is equal to rolling it. Work done in rolling is more than in lifting. Work done in both is same but the rate of doing work is less in rolling. ANSWER DOWNLOAD EXAMIANS APP
Physics In a Cinema hall, the distance between the projector and the screen is increased by 2%. Then the intensity of illumination on the screen is Decreased by 4% Increased by 2% Decreased by 2% Increased by 4% Decreased by 4% Increased by 2% Decreased by 2% Increased by 4% ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following is not a valid conservation law of classical physics? Law of conservation of charge Law of conservation of energy Law of conservation of current Law of conservation of angular momentum Law of conservation of charge Law of conservation of energy Law of conservation of current Law of conservation of angular momentum ANSWER DOWNLOAD EXAMIANS APP
Physics A metal plate with a circular hole at the centre is heated. What will happen to the area of the hole ? Remain constant Dacrease Will increase first and then dcrease Increase Remain constant Dacrease Will increase first and then dcrease Increase ANSWER DOWNLOAD EXAMIANS APP
Physics What factors contribute to global winds? Uneven warming of the earth by the sun Convection Cells Coriolis Effect All of these Uneven warming of the earth by the sun Convection Cells Coriolis Effect All of these ANSWER DOWNLOAD EXAMIANS APP
Physics Wollen clothes keep the body warm because Wool is a bad conductor Wool absorbs radiant heat from outer objects Wool increases the temperature of the body Wool rejects heat from the outer objects Wool is a bad conductor Wool absorbs radiant heat from outer objects Wool increases the temperature of the body Wool rejects heat from the outer objects ANSWER DOWNLOAD EXAMIANS APP
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