Physics A single fixed pulley is used to draw water from a well because Velocity ratio is low Efficiency is 100% Mechanical advantage is high Force is applied in a convenient direction Velocity ratio is low Efficiency is 100% Mechanical advantage is high Force is applied in a convenient direction ANSWER DOWNLOAD EXAMIANS APP
Physics The strength of an electromagnet can be increased by All of these Increasing the length of the coiled wire Increasing the number of turns Increasing current supply All of these Increasing the length of the coiled wire Increasing the number of turns Increasing current supply ANSWER DOWNLOAD EXAMIANS APP
Physics Fish and other aquatic creatures can live inside a deep frozen pond because There will always be water just beneath the ice level Fish are cold-blooded animals Ice is a bad conductor of heat They can adapt themselves to live in ice There will always be water just beneath the ice level Fish are cold-blooded animals Ice is a bad conductor of heat They can adapt themselves to live in ice ANSWER DOWNLOAD EXAMIANS APP
Physics Who gave black hole theory? Isaac Newton Albert Einstein Stephen Hawking None of these Isaac Newton Albert Einstein Stephen Hawking None of these ANSWER DOWNLOAD EXAMIANS APP
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 Cosmic rays reach eyes more during the eclipse Infrared radiations from sun burn our retina Ultraviolet radiations from Sun burn our retina All radiations from sun initiate chemical reactions in eyes Cosmic rays reach eyes more during the eclipse Infrared radiations from sun burn our retina ANSWER DOWNLOAD EXAMIANS APP
Physics In very cold countries alcohol is used as a thermometric liquid because Alcohol can be coloured for its level to be seen easily Alcohol is a poor conductor of heat It will not stick to the glass tube Its freezing point is very low Alcohol can be coloured for its level to be seen easily Alcohol is a poor conductor of heat It will not stick to the glass tube Its freezing point is very low ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS