Physics A small gap is left at the joints of rails in a railway track to Avoid the heating of tracks to high temperature Control the speed of train Keep the rails equidistant Avoid the tracks being distorted due to seasonal temperature variation Avoid the heating of tracks to high temperature Control the speed of train Keep the rails equidistant Avoid the tracks being distorted due to seasonal temperature variation ANSWER DOWNLOAD EXAMIANS APP
Physics Which one of the following is the value of one nanometer? 10-7 cm 10-3 cm 10-4 cm 10-6 cm 10-7 cm 10-3 cm 10-4 cm 10-6 cm ANSWER DOWNLOAD EXAMIANS APP
Physics The wave theory of light can explain Comptom effect Black body spectrum Photoelectric effect Interference of light Comptom effect Black body spectrum Photoelectric effect Interference of light ANSWER DOWNLOAD EXAMIANS APP
Physics Bolometer is used to measure Frequency Velocity Temperature Wavelength Frequency Velocity Temperature Wavelength ANSWER DOWNLOAD EXAMIANS APP
Physics What is the principle of a ''Life Jacket"? It increases the volume of the person to keep him afloat It provides oxygen to a drowning person The person can sit on it like a raft It decreases the volume of the person to keep him afloat It increases the volume of the person to keep him afloat It provides oxygen to a drowning person The person can sit on it like a raft It decreases the volume of the person to keep him afloat ANSWER DOWNLOAD EXAMIANS APP
Physics A cyclist leans inwards when he is negotiating a curve so that His weight may be reduced No frictional force may be produced between the wheels and the axle Necessary centripetal force may be available from the horizontal component of the normal reaction due to the track to maintain the curved motion. He may increase his speed His weight may be reduced No frictional force may be produced between the wheels and the axle Necessary centripetal force may be available from the horizontal component of the normal reaction due to the track to maintain the curved motion. He may increase his speed ANSWER DOWNLOAD EXAMIANS APP
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