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work done in rolling is more than in lifting
work done in lifting the stone is equal to rolling it
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
The absorption of ink by blotting paper involves
Siphon will fail to work if
Nuclear sizes are expressed in a unit named
Light year is a unit of
Mirage is due to
Light from the Sun reaches us in nearly
Stars appear to move from east to west because
Pa(Pascal) is the unit for
Planets do not twinkle because
Metals are good conductors of electricity because