Physics A small gap is left at the joints of rails in a railway track to 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 Avoid the heating of tracks to high temperature Control the speed of train ANSWER DOWNLOAD EXAMIANS APP
Physics Erg cross Sec is the unit of Energy Linear Momentum Angular momentum Planck's constant Energy Linear Momentum Angular momentum Planck's constant ANSWER DOWNLOAD EXAMIANS APP
Physics Least audible sound for most of the human ear is : 10.0 µ bar 5.0 µ bar 0.0002 µ bar 0.005 µ bar 10.0 µ bar 5.0 µ bar 0.0002 µ bar 0.005 µ bar ANSWER DOWNLOAD EXAMIANS APP
Physics A potentiometer wire is 100 cm long and a constant potential difference is maintained across it. Two cells are connected in series first to support one another and then in opposite direction. The balance points are obtained at 50 cm and 10 cm from the positive end of the wire in the two cases. The ratio of the emf's is : 0.20902777777778 0.12777777777778 0.21111111111111 0.12638888888889 0.20902777777778 0.12777777777778 0.21111111111111 0.12638888888889 ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following devices can be used to detect radiant heat ? Six's maximum and minimum thermometer Liquid thermometer Constant volume air thermometer Thermopile Six's maximum and minimum thermometer Liquid thermometer Constant volume air thermometer Thermopile ANSWER DOWNLOAD EXAMIANS APP
Physics The group of solar cells joined together in a definite pattern is called a Battery Solar cooker Solar cell panel Solar heater Battery Solar cooker Solar cell panel Solar heater ANSWER DOWNLOAD EXAMIANS APP
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