Physics An optically plane surface reflects a beam of light As a diffused beam in one direction As diffused beams in all directions As parallel beams in all directions As a parallel beam in one direction As a diffused beam in one direction As diffused beams in all directions As parallel beams in all directions As a parallel beam in one direction ANSWER DOWNLOAD EXAMIANS APP
Physics Large astronomical telescopes always use as objective None of these lens combinations of lenses mirror None of these lens combinations of lenses mirror ANSWER DOWNLOAD EXAMIANS APP
Physics Moving electric charge produces : Heat waves Magnetic field Sound waves Light rays Heat waves Magnetic field Sound waves Light rays ANSWER DOWNLOAD EXAMIANS APP
Physics Which is best used as a sound absorbing material in partition walls ? Stone chips Glass pieces Glass - wool Steel Stone chips Glass pieces Glass - wool Steel ANSWER DOWNLOAD EXAMIANS APP
Physics A car parked in the sun with its windows closed gets terribly hot inside. This is due to The good conducting power of the metal body The greenhouse effect The heat emitted by the engine The double layered wind shield The good conducting power of the metal body The greenhouse effect The heat emitted by the engine The double layered wind shield ANSWER DOWNLOAD EXAMIANS APP
Physics Why does'nt the hydrogen atom emit X-rays? It is very small in size Its energy levels are very close to each other It is highly electropositive It has only one electron It is very small in size Its energy levels are very close to each other It is highly electropositive It has only one electron ANSWER DOWNLOAD EXAMIANS APP
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