what is light? its si unit.
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nothing it is energy .it combination of electric field and magnetic field.
is sensation of sightness.
is sensation of sightness.
kksilvs:
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the light is a form of energy which enables us to see things arounds us. light is luminous intensity .
S.I UNIT:-
candela denoted by Cd
S.I UNIT:-
candela denoted by Cd
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