SSC
CHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Candela is the SI unit of which physical quantity
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Amount of substance
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Pressure
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Force
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Luminous intensity
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Explanation:
Detailed explanation-1: -The Candela is the base unit of luminous intensity in the International System of Units. Luminous intensity emitted by a point light source in a particular direction perunit solid angle is expressed in terms of Candela. It is one of the 7 SI units.
Detailed explanation-2: -The SI unit of luminous intensity is candela.
Detailed explanation-3: -The candela, symbol cd, is the SI unit of luminous intensity in a given direction.
Detailed explanation-4: -The candela is the luminous intensity, in a given direction, of a source that emits monochromatic radiation of frequency 540×1012 hertz and that has a radiant intensity in that direction of 1683 watt per steradian.
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