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In a Young's Double Slit experiment, the separation of four bright fringes is 2.5mm, the wavelength of light used is 6.2*10^-7m...Asked by A GOODSTUDENT
In a Young's Double Slit experiment, the separation of four bright fringes is 2.5mm, the wavelength of light used is 6.2*10^-7m. If the distance from the slits to the screen is 80cm, calculate the separation of two slits.
I applied
4*¥D/d=1.5*10^-3m
but the answer didn't match. It matches when I use 3¥D/d instead of 4.
Shouldn't the separation of four bright fringes be 4¥D/d (after applying sin@=tan@ approximation)
I applied
4*¥D/d=1.5*10^-3m
but the answer didn't match. It matches when I use 3¥D/d instead of 4.
Shouldn't the separation of four bright fringes be 4¥D/d (after applying sin@=tan@ approximation)
Answers
Answered by
Damon
0 to 1
0 to -1
1 to 2
-1 to -2
that is three gaps
0 to -1
1 to 2
-1 to -2
that is three gaps
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