Answer:
The bright spots will get closer together.
Explanation:
Coloured fringes are formed at the screen if monochromatic light is replaced by the white light.
The distance between bright spots on the second screen will decrease if the distance between the two slits in the first screen is made smaller
The rules of geometrical optics hold when the widths of the slits are significantly greater than the wavelength of the light, —the light casts two shadows, and there are two illuminated regions on the screen. However, as the slits decrease in width, the light diffracts into the geometrical shadow, and the light waves overlap on the screen.Â
The bright spots will therefore get closer together.
Answer:
The bright spots (fringes) would be have a wider distance between them if the distance between the two small slits is shortened,
Explanation:
In a double slit interference experiment, the pattern on the screen would produce bright and dark spots on a screen, called fringes.
The expression:
[tex]y_{m} =[/tex] mλ Ă· d Â
is used to determine the position of the screen, y at any given angle of bright spot, m (1,2,3,4); depending on the distance of the slits,  d, at the frequency of monochromatic light, λ .
Neglecting the angle of the bright spot, and given the distance between the first screen with slits and the viewing screen, L:
Δy = λL ÷ d
which implies that d is inversely proportional to the angle of the bright spots and the viewing screen.
