Physics Ultra violet radiations of the Sun do not reach the earth because, earth's atmosphere is surrounded by Carbon dioxide Chlorine Ozone Ammonia Carbon dioxide Chlorine Ozone Ammonia ANSWER DOWNLOAD EXAMIANS APP
Physics Heavy water is used in nuclear reactor to Slow down neutron Increase speed of neutron Absorb neutron Increase temperature Slow down neutron Increase speed of neutron Absorb neutron Increase temperature ANSWER DOWNLOAD EXAMIANS APP
Physics A car parked in the sun with its windows closed gets terribly hot inside. This is due to The double layered wind shield The heat emitted by the engine The good conducting power of the metal body The greenhouse effect The double layered wind shield The heat emitted by the engine The good conducting power of the metal body The greenhouse effect ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following is the fastest communication channel? Microwave All are operating at nearly the same propagation speed Optical fiber Radio wave Microwave All are operating at nearly the same propagation speed Optical fiber Radio wave ANSWER DOWNLOAD EXAMIANS APP
Physics A periscope works by the principle of Refraction Diffraction Reflection Total internal reflection Refraction Diffraction Reflection Total internal reflection ANSWER DOWNLOAD EXAMIANS APP
Physics The pressure exerted by a 760 mm column of mercury at 0°C is known as 1 atmosphere 1 poise 1 pascal 1 bar 1 atmosphere 1 poise 1 pascal 1 bar ANSWER DOWNLOAD EXAMIANS APP
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