Physics It is dangerous to observe Solar eclipse with naked eyes because Infrared radiations from sun burn our retina Cosmic rays reach eyes more during the eclipse All radiations from sun initiate chemical reactions in eyes Ultraviolet radiations from Sun burn our retina Infrared radiations from sun burn our retina Cosmic rays reach eyes more during the eclipse All radiations from sun initiate chemical reactions in eyes Ultraviolet radiations from Sun burn our retina ANSWER DOWNLOAD EXAMIANS APP
Physics What is unit of Viscosity ? Watt per meter per degree celcius Joule per kilogram per Kelvin Coulomb Newton second per square meter Watt per meter per degree celcius Joule per kilogram per Kelvin Coulomb Newton second per square meter ANSWER DOWNLOAD EXAMIANS APP
Physics When a pail of water is swung in a vertical circle, the water does not fall out at the top of the loop when the speed is Below a certain minimum value irrespective of amount of water in the pail Above a certain minimum value irrespective of amount of water in the pail Below a certain minimum value depending on amount of water in the pail Above a certain minimum value depending on amount of water in the pail Below a certain minimum value irrespective of amount of water in the pail Above a certain minimum value irrespective of amount of water in the pail Below a certain minimum value depending on amount of water in the pail Above a certain minimum value depending on amount of water in the pail ANSWER DOWNLOAD EXAMIANS APP
Physics A small drop of oil spreads over water because : Oil has a higher surface tension Water has a higher surface tension Oil has a higher viscosity Water has a higher viscosity Oil has a higher surface tension Water has a higher surface tension Oil has a higher viscosity Water has a higher viscosity ANSWER DOWNLOAD EXAMIANS APP
Physics A metal ball and a rubber ball, both having the same mass, strike a wall normally with the same velocity. The rubber ball rebounds and the metal ball does not rebound. It can be concluded that The metal ball suffers greater change in momentum The initial momentum of the rubber ball is greater than that of the metal ball The rubber ball suffers greater change in momentum Both suffer the same change in momentum The metal ball suffers greater change in momentum The initial momentum of the rubber ball is greater than that of the metal ball The rubber ball suffers greater change in momentum Both suffer the same change in momentum ANSWER DOWNLOAD EXAMIANS APP
Physics When a body falls from an aeroplane, there is increase in its Acceleration Kinetic energy Potential energy Mass Acceleration Kinetic energy Potential energy Mass ANSWER DOWNLOAD EXAMIANS APP
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