Question:
In a double slit interference experiment, the separation between the slits is $1.0 \mathrm{~mm}$, the wavelength of light used is $5.0 \times 10^{-7} \mathrm{~m}$ and the distance of the screen from the slits is $1.0 \mathrm{~m}$.
(a) Find the distance of the centre of the central maximum.
(b) How many bright fringes are formed in one centimeter width on the screen?
Solution:
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