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#1 2017-02-05 06:49:37
Photocell can be used to:
12th Class Quizzes 12th Class Physics
Question:
Photocell can be used to:
Option A):
Open doors automatically in a building
Option B):
Operator burglar alarms
Option C):
All of these
Option D):
Count vehicles passing a road
Correct Answer is Option C):
All of these
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2017-02-05 06:49:37
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Re: Photocell can be used to:
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