Physics What is the minimum distance (in metres) required to hear an echo? 21 13 17 10 21 13 17 10 ANSWER DOWNLOAD EXAMIANS APP
Physics Why does'nt the hydrogen atom emit X-rays? It is very small in size It is highly electropositive It has only one electron Its energy levels are very close to each other It is very small in size It is highly electropositive It has only one electron Its energy levels are very close to each other ANSWER DOWNLOAD EXAMIANS APP
Physics Which metal is the best conductor of heat? Silver Copper Gold All of these Silver Copper Gold All of these ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following is used to split white light into different colours ? Glass slab Prism Convex lens Concave lens Glass slab Prism Convex lens Concave lens ANSWER DOWNLOAD EXAMIANS APP
Physics If there is a circular hole in a metal plate, what happens to the radius of the hole when the plate is heated? Increases Unchanged Depends upon the metal Decreases Increases Unchanged Depends upon the metal Decreases ANSWER DOWNLOAD EXAMIANS APP
Physics A machine powered by rotating blades is a None of these Solar panel Fumerole Turbines None of these Solar panel Fumerole Turbines ANSWER DOWNLOAD EXAMIANS APP
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