Physics A small gap is left at the joints of rails in a railway track to 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 Control the speed of train ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following causes adiabatic temperature changes in atmosphere? Expansion and compression of the air Latent heat of condensation Deflection and advection Partial absorption of solar radiation by the atmosphere Expansion and compression of the air Latent heat of condensation Deflection and advection Partial absorption of solar radiation by the atmosphere ANSWER DOWNLOAD EXAMIANS APP
Physics Materials that usually are good conductors of electricity? Nickel Aluminium Lead Wood Nickel Aluminium Lead Wood ANSWER DOWNLOAD EXAMIANS APP
Physics Ultrasound devices operate with minimum frequency from 45 kHz 35 kHz 20kHz 60 kHz 45 kHz 35 kHz 20kHz 60 kHz ANSWER DOWNLOAD EXAMIANS APP
Physics Necessary element of change in solar energy to electrical energy Berillium Tantelum Silicon Pure Copper Berillium Tantelum Silicon Pure Copper ANSWER DOWNLOAD EXAMIANS APP
Physics Amount of water vapour in the atmosphere is measured in terms of Humidity All of these Droplets Smog Humidity All of these Droplets Smog ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS