Optics Question 504
Question: Which has more luminous efficiency
Options:
A) A 40 W bulb
B) A 40 W fluorescent tube
C) Both have same
D) Cannot say
Show Answer
Answer:
Correct Answer: B
Solution:
A 40 W fluorescent tube
A) A 40 W bulb
B) A 40 W fluorescent tube
C) Both have same
D) Cannot say
Correct Answer: B
A 40 W fluorescent tube
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