MCQ
Total flux produced by a source of $1 cd$ is
- A$\frac{1}{{4\pi }}$
- B$8\pi $
- ✓$4\pi $
- D$\frac{1}{{8\pi }}$
✓
Answer
Correct option: C.
$4\pi $
c
(c) Luminous intensity $L = \frac{\phi }{{4\pi }}$$ \Rightarrow 1 = \frac{\phi }{{4\pi }} \Rightarrow \phi = 4\pi $.
(c) Luminous intensity $L = \frac{\phi }{{4\pi }}$$ \Rightarrow 1 = \frac{\phi }{{4\pi }} \Rightarrow \phi = 4\pi $.
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