Physics Which of the following is the fastest communication channel? Optical fiber All are operating at nearly the same propagation speed Microwave Radio wave Optical fiber All are operating at nearly the same propagation speed Microwave Radio wave ANSWER DOWNLOAD EXAMIANS APP
Physics The height of a geo-stationary satellite from the Earth's surface is approximately : 42,000 km 30,000 km 36,000 km None of these 42,000 km 30,000 km 36,000 km None of these ANSWER DOWNLOAD EXAMIANS APP
Physics The characteristic invalid for heat radiation is that it travels : In a straight line Heating the medium through which it passes With the speed of light In all directions In a straight line Heating the medium through which it passes With the speed of light In all directions ANSWER DOWNLOAD EXAMIANS APP
Physics Which one among the following components is used as an amplifying device? Capacitor Diode Transistor Transformer Capacitor Diode Transistor Transformer ANSWER DOWNLOAD EXAMIANS APP
Physics The term ''equinox' means The path which the Earthtakes around the Sun When the day and night are of equal duration The time when the Sun seems to be going round and round in the sky in the Arctic but does not go below the horizon The axis of the Earth around which it rotates The path which the Earthtakes around the Sun When the day and night are of equal duration The time when the Sun seems to be going round and round in the sky in the Arctic but does not go below the horizon The axis of the Earth around which it rotates ANSWER DOWNLOAD EXAMIANS APP
Physics Lamberts law is related to Interference Illumination Refraction Reflection Interference Illumination Refraction Reflection ANSWER DOWNLOAD EXAMIANS APP
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