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Blazing goIITian

Joined:	10 Nov 2008
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16 Jan 2010 15:40:08 IST

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A thin film os soap solution(n=1.4) lies on top of a smooth glass plate (n=1.5).When visible light i

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A thin film os soap solution(n=1.4) lies on top of a smooth glass plate (n=1.5).When visible light is incident almost normal to the glass,two adjacent reflection maxima are observed at 2 different wavelenghts 420 and 630 nm.Find the minimum thickness of soap film.

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Abhishek S

Blazing goIITian

Joined: 10 Nov 2008

Posts: 658

16 Jan 2010 15:40:52 IST

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a)420 nm.

b)450 nm

c)630 nm

d)1260 nm

Abhishek S

Blazing goIITian

Joined: 10 Nov 2008

Posts: 658

16 Jan 2010 21:01:22 IST

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dear sir pls..

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