Physics Lightning is produced when Similar charges of electricity rush towards each other and then get repelled Clouds strike against impurities in air and the friction burns up these impurities Strong opposite charges in different clouds break down the resistance offered by the intervening air Water vapour produces electricity in the clouds Similar charges of electricity rush towards each other and then get repelled Clouds strike against impurities in air and the friction burns up these impurities Strong opposite charges in different clouds break down the resistance offered by the intervening air Water vapour produces electricity in the clouds 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 Both suffer the same change in momentum The rubber ball suffers greater 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 Both suffer the same change in momentum The rubber ball suffers greater change in momentum ANSWER DOWNLOAD EXAMIANS APP
Physics The swing of a spinning cricket ball in air can be explained on the basis of Turbulence caused by wind. Buoyancy of air. Bernoulli's theorem. Sudden change in wind direction. Turbulence caused by wind. Buoyancy of air. Bernoulli's theorem. Sudden change in wind direction. ANSWER DOWNLOAD EXAMIANS APP
Physics Electromagnet is constructed with which of the following ? Aluminium Nickel Soft Iron Steel Aluminium Nickel Soft Iron Steel ANSWER DOWNLOAD EXAMIANS APP
Physics Who enunciated the laws of planetary motion? Galileo Isaac Newton Johannes Kepler Nicolaus Copernicus Galileo Isaac Newton Johannes Kepler Nicolaus Copernicus ANSWER DOWNLOAD EXAMIANS APP
Physics A person standing on a railway platform listens to the whistles of arriving and departing trains. The whistle heard is Of higher intensity when train arrives Of higher pitch when train arrives The same in both cases in all respects Of higher pitch when train departs Of higher intensity when train arrives Of higher pitch when train arrives The same in both cases in all respects Of higher pitch when train departs ANSWER DOWNLOAD EXAMIANS APP
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