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Light of wavelength 630 nm (630 x 10-9 m) is used to produce a double slit diffraction pattern where the third order image is 0.10 m from the central image using a diffraction grating constant of 4.9 x 10-5 m. How far is the screen from the slits? SHOW ALL WORK

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okpalawalter8

For Light of wavelength 630 nm (630 x 10-9 m) is used to produce a double slit diffraction pattern where the third order image is 0.10 m the distance of  the screen from the slits  is mathematically given as

D = 26m

How far is the screen from the slits?

Generally, the equation for the small-angle approximation  is mathematically given as

x = n(Landa)D/d

therefore,

D =  0.10x4.9 x 10-5/(3x630 x 10-9)

D = 26m

In conclusion, the distance of  the screen from the slits is

D = 26m

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