Physics Optical fibres are based on the phenomenon of Total Internal Reflection Dispersion Interference Diffraction Total Internal Reflection Dispersion Interference Diffraction ANSWER DOWNLOAD EXAMIANS APP
Physics The minimum number of geostationary satellites needed for uninterrupted global coverage is : 4 2 3 1 4 2 3 1 ANSWER DOWNLOAD EXAMIANS APP
Physics Choose the most appropriate answer: In which atmospheric layer are the communication satellites located? Stratosphere Troposphere Mesosphere Ionosphere Stratosphere Troposphere Mesosphere Ionosphere ANSWER DOWNLOAD EXAMIANS APP
Physics A small gap is left at the joints of rails in a railway track to Control the speed of train Avoid the heating of tracks to high temperature Keep the rails equidistant Avoid the tracks being distorted due to seasonal temperature variation Control the speed of train Avoid the heating of tracks to high temperature Keep the rails equidistant Avoid the tracks being distorted due to seasonal temperature variation ANSWER DOWNLOAD EXAMIANS APP
Physics The snow on the mountains does not melt all at once when it is heated by the sun because: It reflects most of the heat from the sun It has a high latent heat of fusion It becomes very hard It has a low specific heat capacity It reflects most of the heat from the sun It has a high latent heat of fusion It becomes very hard It has a low specific heat capacity ANSWER DOWNLOAD EXAMIANS APP
Physics 'Therm' is the unit of Heat Power Light Distance Heat Power Light Distance ANSWER DOWNLOAD EXAMIANS APP
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