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Blazing goIITian

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21 Jan 2010 21:29:23 IST

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Q. 80 In Young's double slit experiment a minima is observed when path difference between the inte

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Q. 80 In Young's double slit experiment a minima is observed when path difference between the interfering beam is: 1. 2. 1.5 3. 2 4. 2.25pls with explanation also..whats relation bw path difference and phase difference?

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Abhishek S

Blazing goIITian

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21 Jan 2010 21:30:03 IST

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1.    1 lambda
2.     1.5 lambda
3.     2 lambda
4.     2.25 lambda

kiran

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21 Jan 2010 21:54:12 IST

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2pi / lamda times path difference= phase difference

condition for minima is (2n+1)lamda/2=path difference n=0,1,2.........

Abhishek S

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21 Jan 2010 22:04:07 IST

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then why is d)2.25 not the answer?

kiran

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21 Jan 2010 22:16:06 IST

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bcoz there is no whole number n satisying it

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