Question

2. Monochromatic light is used to illuminate a pair of narrow slits 0.3 mm apart, and the interference
pattern is observed on a screen 0.9 m away. The second dark band appears 3.0 mm from the centre of the
pattern. The wavelength of the light is ----​

Answer 1

Monochromatic color refers to a color scheme that is comprised of variations of one color. You can use any color to create a monochromatic color scheme. For example, adding white to red creates pink, adding black to red creates maroon, etc. Then, you could have a monochromatic color scheme of pink, red, and maroon.