Physics Optical fibre works on which of the following principle of light? Diffraction Total internal reflection Refraction Reflection Diffraction Total internal reflection Refraction Reflection ANSWER DOWNLOAD EXAMIANS APP
Physics To measure the speed of an approaching car a police officer shines Ultra high frequency waves on it Radio waves on it Microwaves on it Light waves on it Ultra high frequency waves on it Radio waves on it Microwaves on it Light waves on it ANSWER DOWNLOAD EXAMIANS APP
Physics Purpose of an optical filter is to Reflect lights of different colours Transmit or absorb light of different colours Dispense light into component colours Refract light of different colours Reflect lights of different colours Transmit or absorb light of different colours Dispense light into component colours Refract light of different colours ANSWER DOWNLOAD EXAMIANS APP
Physics The motion of the wheels of a bullock-cart while moving on the road is an example of Translatory and rotatory motion Oscillatory and translatory motion Oscillatory and rotatory motion Translatory motion only Translatory and rotatory motion Oscillatory and translatory motion Oscillatory and rotatory motion Translatory motion only ANSWER DOWNLOAD EXAMIANS APP
Physics Which type of mirror is used in the head lights of vehicles ? Convex mirror Plane mirror Parabolic mirror Concave mirror Convex mirror Plane mirror Parabolic mirror Concave mirror ANSWER DOWNLOAD EXAMIANS APP
Physics Mach number is used in connection with the speed of sound ships spacecraft aircraft sound ships spacecraft aircraft ANSWER DOWNLOAD EXAMIANS APP
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