Physics It is dangerous to observe Solar eclipse with naked eyes because Ultraviolet radiations from Sun burn our retina All radiations from sun initiate chemical reactions in eyes Infrared radiations from sun burn our retina Cosmic rays reach eyes more during the eclipse Ultraviolet radiations from Sun burn our retina All radiations from sun initiate chemical reactions in eyes Infrared radiations from sun burn our retina Cosmic rays reach eyes more during the eclipse ANSWER DOWNLOAD EXAMIANS APP
Physics One can distinguish a telescope from a microscope by observing Colour Length and size of the lens Length Size of the lens Colour Length and size of the lens Length Size of the lens ANSWER DOWNLOAD EXAMIANS APP
Physics A solid needle placed horizontally on the surface of the water floats due to Surface tension of water Water pressure Capillary action Viscosity of water Surface tension of water Water pressure Capillary action Viscosity of water ANSWER DOWNLOAD EXAMIANS APP
Physics Two identical solid pieces, one of gold and other of silver, when immersed completely in water exhibit equal weights. When weighed in air (given that density of gold is greater than that of silver) The gold piece will weigh more Weighing will depend on their masses The silver piece will weigh more Both silver and gold pieces weigh equal The gold piece will weigh more Weighing will depend on their masses The silver piece will weigh more Both silver and gold pieces weigh equal ANSWER DOWNLOAD EXAMIANS APP
Physics It is easier to roll a barrel full of coal tar than to pull it because more surface area of the barrel is in contact with the road when it is pulled the rolling friction is much less than the sliding friction the full weight of the barrel comes into play when it is pulled coal tar is a liquid and it flows in the barrel when it is rolled more surface area of the barrel is in contact with the road when it is pulled the rolling friction is much less than the sliding friction the full weight of the barrel comes into play when it is pulled coal tar is a liquid and it flows in the barrel when it is rolled ANSWER DOWNLOAD EXAMIANS APP
Physics What changes will happen to a bowl of ice and water kept at exactly zero degree Celsius ? No change will happen All ice will melt All water will become ice Only some ice will melt No change will happen All ice will melt All water will become ice Only some ice will melt ANSWER DOWNLOAD EXAMIANS APP
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