Physics Which of the following is the fastest communication channel? Optical fiber Microwave Radio wave All are operating at nearly the same propagation speed Optical fiber Microwave Radio wave All are operating at nearly the same propagation speed ANSWER DOWNLOAD EXAMIANS APP
Physics A small gap is left at the joints of rails in a railway track to Avoid the tracks being distorted due to seasonal temperature variation Avoid the heating of tracks to high temperature Keep the rails equidistant Control the speed of train Avoid the tracks being distorted due to seasonal temperature variation Avoid the heating of tracks to high temperature Keep the rails equidistant Control the speed of train ANSWER DOWNLOAD EXAMIANS APP
Physics A needle or a pin floats on the surface of water because of Adhesive force Viscosity Surface tension Surface energy Adhesive force Viscosity Surface tension Surface energy ANSWER DOWNLOAD EXAMIANS APP
Physics Gamma rays are emitions that have Mass but no charge Both mass and charge Neither mass nor charge Charge but no mass Mass but no charge Both mass and charge Neither mass nor charge Charge but no mass ANSWER DOWNLOAD EXAMIANS APP
Physics Electric power is measured in units of Watt Ampere Joule Volt Watt Ampere Joule Volt ANSWER DOWNLOAD EXAMIANS APP
Physics An egg sinks in soft water but floats in a concentrated solution of salt because Albumin dissolves in salt solution and egg becomes lighter Water has high surface tension Egg absorbs salt from the solution and expands The density of salt solution exceeds the density of eggs Albumin dissolves in salt solution and egg becomes lighter Water has high surface tension Egg absorbs salt from the solution and expands The density of salt solution exceeds the density of eggs ANSWER DOWNLOAD EXAMIANS APP
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