Last Updated On 16-03-2023 - By Jeesha Sara
In a double slit arrangement fringes are produced using light of wavelength 
. One slit is covered by a thin plate of glass of refractive index 1.4 and the other with another glass plate of same thickness but of refractive index 1.7. By doing so the central bright shifts to original fifth bright fringe from centre. Thickness of glass plate is
a)
b)
c)
d)
In a double slit arrangement fringes are produced using light of wavelength . One slit is covered by a thin plate of glass of refractive index 1.4 and the other with another glass plate of same thickness but of refractive index 1.7. By doing so the central bright shifts to original fifth bright fringe from centre. Thickness of glass plate is
a)
b)
c)
d)
Question ID - 150120 :-
In a double slit arrangement fringes are produced using light of wavelength . One slit is covered by a thin plate of glass of refractive index 1.4 and the other with another glass plate of same thickness but of refractive index 1.7. By doing so the central bright shifts to original fifth bright fringe from centre. Thickness of glass plate is
a)
b)
c)
d)
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In a double slit arrangement fringes are produced using light of wavelength |
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a) |
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b) |
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c) |
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d) |
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(a)
Shift 
.png)
Shift due to one plate 
Shift due to another path 
Net shift 
… (i)
Also it is given that 
….(ii)
Hence 
Next Question :
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Wavelength of light of frequency |
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