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
BETA
