SATHEE: Optics Question 484

Optics Question 484

Question: Total flux produced by a source of 1 cd is

[CPMT 2001]

Options:

A) $\frac{1}{4 π}$

B) $8 π$

C) $4 π$

D) $\frac{1}{8 π}$

Show Answer

Answer:

Correct Answer: C

Solution:

Luminous intensity $L = \frac{φ}{4 π}$

$\Rightarrow 1 = \frac{φ}{4 π} \Rightarrow φ = 4 π$ .

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Optics Question 484

Question: Total flux produced by a source of 1 cd is

Options:

Answer:

Solution:

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