Optics Question 508
Question: A point source of 3000 lumen is located at the centre of a cube of side length 2m. The flux through one side is
Options:
A) 500 lumen
B) 600 lumen
C) 750 lumen
D) 1500 lumen
Show Answer
Answer:
Correct Answer: A
Solution:
$ {\varphi _{surface}}=\frac{3000}{6}=500\ lumen. $