Last Updated On 16-03-2023 - By Jeesha Sara
If fringes width 
cm is 0.431 mm and shift of white central fringe on introducing a mica sheet in one path is 1.89 mm. Thickness of the mica sheet will be 
a)
b)
c)
d)
None of these
If fringes width cm is 0.431 mm and shift of white central fringe on introducing a mica sheet in one path is 1.89 mm. Thickness of the mica sheet will be
a)
b)
c)
d)
None of these
Question ID - 150180 :-
If fringes width cm is 0.431 mm and shift of white central fringe on introducing a mica sheet in one path is 1.89 mm. Thickness of the mica sheet will be
a)
b)
c)
d)
None of these
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If fringes width |
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a) |
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b) |
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c) |
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d) |
None of these |
(a)
When a mica sheet is introduced in the path of one of the two interfering beams, then entire fringe pattern is displaced towards the beam is the path of which plate is introduce, but fringe width is not changed.
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Also fringe width is
Also fringe width is
Using Eq. (ii) we get Eq. (i) as
Given, 
Next Question :
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A plane electromagnetic wave travelling along the |
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-direction has a wavelength of 
. The variation in the electric field occurs in the 
-direction with an amplitude 
. The equations for the electric and magnetic fields as a function of 
and 
are respectively
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