Young experiment

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In young's double slit exp.,60 fringes are observed in central view zone with wavelength of light 4000 A.The no. of fringes that will be observed in same view zone with 6000A light is?

#Physics #Optics

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skygirl ·2009-02-27 03:44:04

is the ans 18 fringes ??

then i will post soln..

plz confirm..

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theking ·2009-03-02 19:44:20

Ans: 40

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skygirl ·2009-03-03 04:23:21

omg! am seriously wrong then !

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chemistry organic ·2009-03-03 07:41:44

4/6*60=40......is it correct?

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skygirl ·2009-03-03 08:58:04

iska yeh method hai [12] ...........

agar yeh sach muchh iska method hai... then

wooooooooooooooooooooowwwwwwwww!!!!

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Abhishek Priyam ·2009-03-03 09:33:35

No of fringes in a fixed width be n...(d,D.. kuch kuch hai)

then clearly..
\frac{n\lambda d}{D}=A

A is fixed width..

So n\propto \frac{1}{\lambda }

hence the answer.. :)

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Young experiment

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