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#1 2017-10-27 04:32:50
- shakeel123
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Graham Ball photo phone used a modulated beam of?
Physics ECAT Exams Quizzes MCQs Quizzes Physics ECAT Optical Instruments Online Test 3
Question:
Graham Ball photo phone used a modulated beam of
Option A):
Reflected sun light
Option B):
None of these
Option C):
Diffracted sun light
Option D):
Refracted sun light
Correct Answer is Option A):
Reflected sun light
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2017-10-27 04:32:50
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Re: Graham Ball photo phone used a modulated beam of?
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