Optics Question 492

Question: A source of light emits a continuous stream of light energy which falls on a given area. Luminous intensity is defined as

[CPMT 1986]

Options:

A) Luminous energy emitted by the source per second

B) Luminous flux emitted by source per unit solid angle

C) Luminous flux falling per unit area of a given surface

D) Luminous flux coming per unit area of an illuminated surface

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Answer:

Correct Answer: B

Solution:

Luminous flux emitted by source per unit solid angle



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