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#1 2016-07-03 06:07:37
Which has more luminous efficiency?
Engineering Quizzes Engineering Entrance
Question:
Which has more luminous efficiency?
Option A):
a 40 W bulb
Option B):
a 40 W tube light
Option C):
Both of same
Option D):
Cannot say
Correct Answer is Option B):
a 40 W tube light
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2016-07-03 06:07:37
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