Physics Copper wires are generally used for electrical power transmission instead of iron wire because : Copper is lighter than iron Copper is a better conductor of electricity than iron Copper is cheaper than iron Copper can take higher power than iron Copper is lighter than iron Copper is a better conductor of electricity than iron Copper is cheaper than iron Copper can take higher power than iron ANSWER DOWNLOAD EXAMIANS APP
Physics When hot liquid is poured into a thick glass tumbler, it cracks because glass : Is a bad conductor of heat so only inner surface expands Has a very low specific heat Has low temperature coefficient of expansion Has high temperature coefficient of expansion Is a bad conductor of heat so only inner surface expands Has a very low specific heat Has low temperature coefficient of expansion Has high temperature coefficient of expansion ANSWER DOWNLOAD EXAMIANS APP
Physics The speed of light in air is 3 × 10–8 m/s Infinity 3 × 108 m/s 8 × 103 m/s 3 × 10–8 m/s Infinity 3 × 108 m/s 8 × 103 m/s ANSWER DOWNLOAD EXAMIANS APP
Physics In general, which is the cause of a land breeze? None of these Heat Pressure Temperature None of these Heat Pressure Temperature ANSWER DOWNLOAD EXAMIANS APP
Physics If there were no gravity, which of the following will not be there for a fluid? Upward Thrust Pressure Surface Tension Viscosity Upward Thrust Pressure Surface Tension Viscosity ANSWER DOWNLOAD EXAMIANS APP
Physics A man standing at the top of a tower has two spheres A and B. He drops sphere A downwards and throws sphere B horizontally at the same time. Which of the following is correct ? The question is incomplete because the masses of the spheres are not given. A will reach the ground first. B will reach the ground first. Both the spheres will reach the ground simultaneously. The question is incomplete because the masses of the spheres are not given. A will reach the ground first. B will reach the ground first. Both the spheres will reach the ground simultaneously. ANSWER DOWNLOAD EXAMIANS APP
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