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Grade: 12th pass
        
When a film of transparent material of refractive index1.2 is put behind one of the slits of a two-slit Young's experiment,the zeroth order bright fringe moves to the position previously occupied by the 4 the order bright fringe.Given that the wavelength of the light used 5000 Angstrom.Find the thickness of the film.
 
5 months ago

Answers : (2)

Satya
13 Points
							
Extra path difference for Central position =(ū-1)t
As it coincides with previous 4th bright
(ū-1)t = 4 lambda
t = 10-5 m
 
3 months ago
Arun
24739 Points
							
Dear student
 
 
Extra path difference for Central position =(ū-1)t
As it coincides with previous 4th bright
(ū-1)t = 4 lambda
t = 10-5 m
 
Hope it helps
3 months ago
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