Physics Out of the following, which is not emitted by radioactive substance? Electrons Alpha particles Electromagnetic radiations Neutrons Electrons Alpha particles Electromagnetic radiations Neutrons ANSWER DOWNLOAD EXAMIANS APP
Physics The velocity of sound in air Decreases with increase of temperature Increases with decrease of temperature Decreases with decrease of temperature Does not depend on temperature Decreases with increase of temperature Increases with decrease of temperature Decreases with decrease of temperature Does not depend on temperature ANSWER DOWNLOAD EXAMIANS APP
Physics Who among the following discovered X-rays? J.J Thomson W.C Roentgen James Chadwick Marie Curie J.J Thomson W.C Roentgen James Chadwick Marie Curie ANSWER DOWNLOAD EXAMIANS APP
Physics The temperature of a liquid is 32° F. What is its temperature in Celsius scale? 100° C 32° C 212° C 0° C 100° C 32° C 212° C 0° C ANSWER DOWNLOAD EXAMIANS APP
Physics A periscope works on the principle of Total internal reflection Refraction Diffraction Reflection Total internal reflection Refraction Diffraction Reflection ANSWER DOWNLOAD EXAMIANS APP
Physics When a piece of pure silicon is doped with aluminium, then The doped silicon piece will become n-type The conductivity of the doped silicon piece will remain the same The doped silicon piece will become p-type The resistivity of the doped silicon piece will increase The doped silicon piece will become n-type The conductivity of the doped silicon piece will remain the same The doped silicon piece will become p-type The resistivity of the doped silicon piece will increase ANSWER DOWNLOAD EXAMIANS APP
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