Physics A parallel-plate capacitor,with air in between the plates, has capacitance C. Now the space between the two plates of the capacitor is filled with a dielectric of dielectric constant 7. Then the value of the capacitance will become 14C C/7 C 7C 14C C/7 C 7C ANSWER DOWNLOAD EXAMIANS APP
Physics Who among the following discovered X-rays? Marie Curie J.J Thomson W.C Roentgen James Chadwick Marie Curie J.J Thomson W.C Roentgen James Chadwick 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 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 ANSWER DOWNLOAD EXAMIANS APP
Physics In the atmosphere ultraviolet rays are absorbed by Ozone Nitrogen Oxygen Helium Ozone Nitrogen Oxygen Helium ANSWER DOWNLOAD EXAMIANS APP
Physics The unit of noise pollution (level) is : Decimal None of these Ppm Decibel Decimal None of these Ppm Decibel ANSWER DOWNLOAD EXAMIANS APP
Physics In which of the following cases, kinetic energy is being used in performing work ? Wind mill grinding wheat grain Rowing a boat in the lake Driving a car to cover a distance Paddling the bicycle to cover a distance Wind mill grinding wheat grain Rowing a boat in the lake Driving a car to cover a distance Paddling the bicycle to cover a distance ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS