Answer:
0.83 m
Explanation:
w = distance between successive bright fringes = 3.00 cm = 0.03 m
d = separation between the slits = 0.0175 mm = 0.0175 x 10⁻³ m
λ = Wavelength of the light from He-Ne laser = 632.8 x 10⁻⁹ m
D = distance of the screen from the slits = ?
Distance between successive bright fringes is given as
[tex]w = \frac{D\lambda }{d}[/tex]
Inserting the values
[tex]0.03 = \frac{D(632.8\times 10^{-9}) }{0.0175\times 10^{-3}}[/tex]
D = 0.83 m
