Physics The working of a rocket is based on the principle of: Conservation of energy Conservation of angular momentum Conservation of momentum Conservation of mass Conservation of energy Conservation of angular momentum Conservation of momentum Conservation of mass ANSWER DOWNLOAD EXAMIANS APP
Physics The frequency of direct current is ________ 60 HZ 100 HZ 50 HZ Zero 60 HZ 100 HZ 50 HZ Zero ANSWER DOWNLOAD EXAMIANS APP
Physics A bullet is fired from a rifle which recoils after firing. The ratio of kinetic energy of the rifle to that of the bullet is Zero More than one Less than one One Zero More than one Less than one One 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 Avoid the tracks being distorted due to seasonal temperature variation Keep the rails equidistant Control the speed of train Avoid the heating of tracks to high temperature Avoid the tracks being distorted due to seasonal temperature variation Keep the rails equidistant ANSWER DOWNLOAD EXAMIANS APP
Physics To prevent damage from lightning, lightning conductors are used on tall structures. The lightning conductor Can be of any shape Should be made of a good conductor but can be of any shape Should be in the form of a vertical rod Should be made of a good conductor like copper with sharp-pointed edges Can be of any shape Should be made of a good conductor but can be of any shape Should be in the form of a vertical rod Should be made of a good conductor like copper with sharp-pointed edges ANSWER DOWNLOAD EXAMIANS APP
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