Physics Optical Fibre technology works on which of these principles of Physics? Bernoulli's Principle Photoelectric effect Total internal reflection of Light Newton's law of Motion Bernoulli's Principle Photoelectric effect Total internal reflection of Light Newton's law of Motion ANSWER DOWNLOAD EXAMIANS APP
Physics Radio waves sent out by a radio stations are reflected by Troposphere Stratosphere Mesosphere Ionosphere Troposphere Stratosphere Mesosphere Ionosphere ANSWER DOWNLOAD EXAMIANS APP
Physics The fuse in our domestic electric circuit melts when there is a high rise in Current Resistance Capacitance Inductance Current Resistance Capacitance Inductance ANSWER DOWNLOAD EXAMIANS APP
Physics On a cold day when the room temperature is 15°C, the metallic cap of a pen becomes much colder than its plastic body, though both are at the same temperature of 15°C, because : Plastics have a lower density than metals Metals have higher thermal capacity than plastics Plastics have a higher thermal conductivity than metals Metals are good conductors of heat Plastics have a lower density than metals Metals have higher thermal capacity than plastics Plastics have a higher thermal conductivity than metals Metals are good conductors of heat ANSWER DOWNLOAD EXAMIANS APP
Physics A copper wire of radius r and length l has a resistance of R. A second copper wire with radius 2r and length l is taken and the two wires are joined in a parallel combination. The resultant resistance of the parallel combination of the two wires will be 5 R/4 4 R/5 5 R R/5 5 R/4 4 R/5 5 R R/5 ANSWER DOWNLOAD EXAMIANS APP
Physics The atmospheric air is held to the Earth by : Rotation of the Earth Clouds Winds Gravity Rotation of the Earth Clouds Winds Gravity ANSWER DOWNLOAD EXAMIANS APP
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