Physics Which one of the following is responsible for the working of Newton's colour disc experiment ? Persistence of vision Formation of impure spectra Formation of pure spectra Principle of complementary colour Persistence of vision Formation of impure spectra Formation of pure spectra Principle of complementary colour ANSWER DOWNLOAD EXAMIANS APP
Physics A hydrogen balloon floats up because of Air pressure decreases with decrease in weight Weight of the balloon is less than the weight of air displaced by it. The pressure inside the balloon is more than the pressure outside it Air pressure decreases with decrease in height Air pressure decreases with decrease in weight Weight of the balloon is less than the weight of air displaced by it. The pressure inside the balloon is more than the pressure outside it Air pressure decreases with decrease in height ANSWER DOWNLOAD EXAMIANS APP
Physics The mass defect is the result of what action occurring? Protons and electrons being attracted to each other Mass being converted to energy when protons and neutrons break apart in a nucleus Mass being converted to energy when protons and neutrons bind together in a nucleus Energy being converted into moles of atoms when neutrons break apart protons Protons and electrons being attracted to each other Mass being converted to energy when protons and neutrons break apart in a nucleus Mass being converted to energy when protons and neutrons bind together in a nucleus Energy being converted into moles of atoms when neutrons break apart protons ANSWER DOWNLOAD EXAMIANS APP
Physics Radio telescopes are better than optical telescopes because All of these they can work even in cloudy conditions they can work during the day and night they can detect faint galaxies which no optical telescope can All of these they can work even in cloudy conditions they can work during the day and night they can detect faint galaxies which no optical telescope can ANSWER DOWNLOAD EXAMIANS APP
Physics The sparkling of a diamond is due to Interference of light Polarisation of light Refraction of light Total internal reflection of light Interference of light Polarisation of light Refraction of light Total internal reflection of light 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
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