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Question is attached... {ALTS-10 Q39}

Question is attached...
 
{ALTS-10  Q39}

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Grade:12th pass

2 Answers

Manas Bondale
11 Points
7 years ago
Similar Q&A here answers.yahoo.com/question/index?qid=20090410100802AAO78Jj
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Use the standard interference formula d*siny = pathdifference and use siny
daksh
13 Points
7 years ago
answer is (a) three
 

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