Physics To measure the speed of an approaching car a police officer shines Light waves on it Radio waves on it Ultra high frequency waves on it Microwaves on it Light waves on it Radio waves on it Ultra high frequency waves on it Microwaves on it ANSWER DOWNLOAD EXAMIANS APP
Physics What is unit of Astronomical distance ? Weber Light year Lux Angstrom Weber Light year Lux Angstrom ANSWER DOWNLOAD EXAMIANS APP
Physics Mach number is used in connection with the speed of aircraft ships spacecraft sound aircraft ships spacecraft sound ANSWER DOWNLOAD EXAMIANS APP
Physics Scalar Quantities are Physical quantities which have no magnitude only and only direction Physical quantities which have magnitude only and direction Physical quantities which have no magnitude and no direction Physical quantities which have magnitude only and no direction Physical quantities which have no magnitude only and only direction Physical quantities which have magnitude only and direction Physical quantities which have no magnitude and no direction Physical quantities which have magnitude only and no direction ANSWER DOWNLOAD EXAMIANS APP
Physics A disk and a sphere of same radius but different masses roll on two inclined planes of the same altitude and length. Which one of the two objects gets to the bottom of the plane first ? Sphere Depends on their masses Both reach at the same time Disk Sphere Depends on their masses Both reach at the same time Disk ANSWER DOWNLOAD EXAMIANS APP
Physics Holography is a technique of Recording a permanent three dimensional black and white photograph Recording a permanent three dimensional photograph of a given single colour or a multicolour Recording a permanent three dimensional multicolour photograph Recording a permanent, sharp two diimensional black and white or multicolour photograph Recording a permanent three dimensional black and white photograph Recording a permanent three dimensional photograph of a given single colour or a multicolour Recording a permanent three dimensional multicolour photograph Recording a permanent, sharp two diimensional black and white or multicolour photograph ANSWER DOWNLOAD EXAMIANS APP
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