Physics A bimetal made copper and iron strips welded together is straight at room temperature. It is held vertically with iron strip towards left and copper strip towards right. If this bimetal is heated, it will Bend towards right None of these Remain straight Bend towards left Bend towards right None of these Remain straight Bend towards left ANSWER DOWNLOAD EXAMIANS APP
Physics If the spinning speed of the earth is increased then the weight of body at the equator Increases Double Same Decreases Increases Double Same Decreases ANSWER DOWNLOAD EXAMIANS APP
Physics The electrical domestic tube light gives white fluorescent light because of Falling of ultra violet rays on the white inner coating of the tube Heavy current Vacuum inside the tube Colision between molecules of filled gas under electric current Falling of ultra violet rays on the white inner coating of the tube Heavy current Vacuum inside the tube Colision between molecules of filled gas under electric current ANSWER DOWNLOAD EXAMIANS APP
Physics Working of safety fuses depends upon1. magnetic effect of the current2. chemical effect of the current3. magnitude of the current4. heating effect of the currentSelect the correct answer using the code given below. 4 only 1, 2, 3 and 4 3 and 4 only 1, 2 and 3 only 4 only 1, 2, 3 and 4 3 and 4 only 1, 2 and 3 only ANSWER DOWNLOAD EXAMIANS APP
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 Which of these branches of Physics deal with heat and temperature and their relation to energy and work? Mechanics Thermodynamics Atomic Physics Geophysics Mechanics Thermodynamics Atomic Physics Geophysics ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS