Physics Purpose of an optical filter is to Reflect lights of different colours Dispense light into component colours Refract light of different colours Transmit or absorb light of different colours Reflect lights of different colours Dispense light into component colours Refract light of different colours Transmit or absorb light of different colours ANSWER DOWNLOAD EXAMIANS APP
Physics Which of these waves can be polarized ? Transverse waves on a string Sound waves in air Longitudinal waves on a string Light waves Transverse waves on a string Sound waves in air Longitudinal waves on a string Light waves ANSWER DOWNLOAD EXAMIANS APP
Physics A good conductor while carrying current is Negatively charged Alternately charged positive and negative Electrically neutral Positively charged Negatively charged Alternately charged positive and negative Electrically neutral Positively charged ANSWER DOWNLOAD EXAMIANS APP
Physics On a cold day when a room temperature is 15oC, the metallic cap of a pen becomes much colder than its plastic body, though both are at the same temperature of 15oC, because plastics have a higher thermal conductivity than metals metals have higher thermal capacity than plastics metals are good conductor of heat plastics have a lower density than metals plastics have a higher thermal conductivity than metals metals have higher thermal capacity than plastics metals are good conductor of heat plastics have a lower density than metals ANSWER DOWNLOAD EXAMIANS APP
Physics A piece of wood is held under water. The upthrust on it will be: Zero Less than weight of the wood More than weight of the wood Equal to the weight of the wood Zero Less than weight of the wood More than weight of the wood Equal to the weight of the wood ANSWER DOWNLOAD EXAMIANS APP
Physics Which type of mirror is used in the head lights of vehicles ? Parabolic mirror Convex mirror Plane mirror Concave mirror Parabolic mirror Convex mirror Plane mirror Concave mirror ANSWER DOWNLOAD EXAMIANS APP