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OpenStudy (aminamoazzam):
Anyone who is good with diffraction gratings ! need help in an MCQ see attachmet ..!
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OpenStudy (aminamoazzam):
Answer is D , Can anyone explain why ?
OpenStudy (aminamoazzam):
@TheSmartOne
TheSmartOne (thesmartone):
@Michele_Laino is better in Physics, maybe he could help as I do not know. :)
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