The class is about heat, waves, and light. The website wants exactly the perfect answer and in the same metric system units that are stated on the calculators that are on the picture for the question, if not, it'll mark it wrong.

bel 10 Monochromatic light of wavelength 668 nm falls on a slit. If the angle between the first bright fringes on either side of the central maximum is 31 , estimate the slit width a. OC a = m abc sin(x) Ox10 Submit Reset Reset All As an estimate, assume the first bright fringe is halfway between the first and second minima. Note that 31 . is the angle between the first bright fringes on either side of the central maximum, not the angle between the first bright fringe and the center of the diffraction pattern