Physics Which of the following is the fastest communication channel? All are operating at nearly the same propagation speed Microwave Optical fiber Radio wave All are operating at nearly the same propagation speed Microwave Optical fiber Radio wave ANSWER DOWNLOAD EXAMIANS APP
Physics The characteristic invalid for heat radiation is that it travels : In a straight line With the speed of light In all directions Heating the medium through which it passes In a straight line With the speed of light In all directions Heating the medium through which it passes ANSWER DOWNLOAD EXAMIANS APP
Physics Why do birds not have respiratory trouble at the time of flying at high altitude ? They have extra air sacs They use less oxygen Their lungs are very large They fly inactively They have extra air sacs They use less oxygen Their lungs are very large They fly inactively ANSWER DOWNLOAD EXAMIANS APP
Physics Ball pen functions on the principle of : Surface tension Viscosity Gravitational force Boyle's Law Surface tension Viscosity Gravitational force Boyle's Law ANSWER DOWNLOAD EXAMIANS APP
Physics When milk is churned, the cream separates from it due to: Viscous forces Frictional force Centrifugal force Gravitational force Viscous forces Frictional force Centrifugal force Gravitational force ANSWER DOWNLOAD EXAMIANS APP
Physics When white light passes through a glass prism we get a spectrum on the other side of the prism. In the emergent beam the ray which is deviated least is The blue ray The green ray The violet ray The red ray The blue ray The green ray The violet ray The red ray ANSWER DOWNLOAD EXAMIANS APP
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