A) \[4\times {{10}^{3}}lm\]
B) \[3\times {{10}^{3}}lm\]
C) \[2\times {{10}^{3}}lm\]
D) \[1.37\times {{10}^{3}}lm\]
Correct Answer: D
Solution :
\[\varphi =\frac{3}{1.5\times {{10}^{-3}}}\times 0.685\]\[=1.37\times {{10}^{3}}lumen\]You need to login to perform this action.
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