Question

Coherent light that contains two wavelengths, 660 nm (red) and 470 nm (blue), passes through two narrow slits that are separated by 0.470 mm. Their interference pattern is observed on a screen 4.50 m from the slits.

Part A:

What is the distance on the screen between the first-order bright fringes for the two wavelength?

Express your answer to two significant figures and include the appropriate units.

Answer 1

Answer 2