Physics Purpose of an optical filter is to Refract light of different colours Dispense light into component colours Reflect lights of different colours Transmit or absorb light of different colours Refract light of different colours Dispense light into component colours Reflect lights of different colours Transmit or absorb light of different colours ANSWER DOWNLOAD EXAMIANS APP
Physics Bats can sense obstacles because they produce Supersonic sound waves Micro sound waves Infrasonic sound waves Ultrasonic sound waves Supersonic sound waves Micro sound waves Infrasonic sound waves Ultrasonic sound waves ANSWER DOWNLOAD EXAMIANS APP
Physics Convex mirror is generally used in ________ Reflector for head light Solar cookers Rear view mirror Opthalmoscope Reflector for head light Solar cookers Rear view mirror Opthalmoscope ANSWER DOWNLOAD EXAMIANS APP
Physics The cover of a solar cooker is made of glass because It retains the heat inside by the green house effect It reflects sun's rays It absorbs sun's rays It rediates heat better than metals It retains the heat inside by the green house effect It reflects sun's rays It absorbs sun's rays It rediates heat better than metals ANSWER DOWNLOAD EXAMIANS APP
Physics An optically plane surface reflects a beam of light As parallel beams in all directions As diffused beams in all directions As a parallel beam in one direction As a diffused beam in one direction As parallel beams in all directions As diffused beams in all directions As a parallel beam in one direction As a diffused beam in one direction ANSWER DOWNLOAD EXAMIANS APP
Physics It is easier for a man to swim in sea water, than in river water because The density of sea water is lesser than the density of river water The sea is wider than the river The density of sea water is more than the density of river water The sea is-deeper than the river The density of sea water is lesser than the density of river water The sea is wider than the river The density of sea water is more than the density of river water The sea is-deeper than the river ANSWER DOWNLOAD EXAMIANS APP
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