In a Young's double slit experiment, 16 fringes are observed in a certain segment of the screen when light of wavelength 700 nm is used. If the wavelength of light is changed to 400 nm, the number of fringes observed in the same segment of the screen would be
Text Solution
Verified by ExpertsThe correct answer is:
A
Let the length of segment is " 
"
Let 
is the no. of fringes in " 
" and 
is fringe width.
Then, we can write
So, 
and, 
Thus, 
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