Physics Ultra violet radiations of the Sun do not reach the earth because, earth's atmosphere is surrounded by Carbon dioxide Ozone Chlorine Ammonia Carbon dioxide Ozone Chlorine Ammonia ANSWER DOWNLOAD EXAMIANS APP
Physics Isotopes of an element contain the same number of protons but different number of neutrons equal number of nucleons equal number of protons and electrons the same number of neutrons but different number of protons the same number of protons but different number of neutrons equal number of nucleons equal number of protons and electrons the same number of neutrons but different number of protons ANSWER DOWNLOAD EXAMIANS APP
Physics When the speed of car is doubled, then what will be the braking force of the car to stop it in the same distance ? One-fourth Half Four times Two times One-fourth Half Four times Two times ANSWER DOWNLOAD EXAMIANS APP
Physics Alpha particle is the nucleus of an atom of Hydrogen Helium Lithium Oxygen Hydrogen Helium Lithium Oxygen ANSWER DOWNLOAD EXAMIANS APP
Physics Copper wires are generally used for electrical power transmission instead of iron wire because : Copper can take higher power than iron Copper is lighter than iron Copper is cheaper than iron Copper is a better conductor of electricity than iron Copper can take higher power than iron Copper is lighter than iron Copper is cheaper than iron Copper is a better conductor of electricity than iron ANSWER DOWNLOAD EXAMIANS APP
Physics Which elements are malleable and good conductors of electricity? Tin and xenon Tin and silver Iodine and xenon Iodine and silver Tin and xenon Tin and silver Iodine and xenon Iodine and silver ANSWER DOWNLOAD EXAMIANS APP
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