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Infrared radiations from sun burn our retina
All radiations from sun initiate chemical reactions in eyes
Cosmic rays reach eyes more during the eclipse
Ultraviolet radiations from Sun burn our retina
It is dangerous to observe Solar eclipse with naked eyes because
It is difficult to cook rice
It is difficult to fix a nail on a freely suspended wooden frame. Which law supports this statement?
It is easier for a man to swim in sea water, than in river water because
It is easier to carry two buckets of water in one hand each, than to carry only one in one hand as
It is easier to roll a barrel full of coal tar than to pull it because
It is easy to burst a gas-filled balloon with a needle than with a nail. It is because
It is possible to extend the range of an A.C ammeter by using
It S denotes sound energy, E denotes electrical energy and M denotes magnetic energy, the correct representation of recording and reproduction in an audio tape recorder is
It takes much longer to cook food in the hills than in the plains, because