SarkariPYQ

SSC Selection Post 2020 PYQ — Question 28

SSC Selection Post - Matriculation Level - 9 Nov 2020 - Shift 3 • General Awareness • Q28

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Which of the following is the SI unit of luminous intensity?

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Correct answer: C

Explanation

The correct answer is option 3 i.e. Candela.

The SI unit of luminous intensity is the candela (cd). Luminous intensity measures the power emitted by a light source in a particular direction per unit solid angle, as perceived by the human eye. It's one of the seven base units in the International System of Units (SI). One candela is approximately the luminous intensity of a common candle, making it a very intuitive unit for understanding brightness in a specific direction.