In a two-slit experiment a third order bright fringe is observed at an angle of 7.10°. If the wavelength of light is 595 nm, what is the slit separation? A) 1.44 × 10^-5 m B) 1.07 × 10^-5 m C) 2.12 × 10^-5 m D) 2.53 × 10^-5 m E) 3.76 × 10^-5 m

Question

Quizplus · Accepted Answer

The correct answer is A because the slit separation is given by the formula d = (m * lambda) / sin(theta), where m is the order of the bright fringe, lambda is the wavelength of light, and theta is the angle of the bright fringe. Plugging in the given values, we get d = (3 * 595 nm) / sin(7.10°) = 1.44 × 10^-5 m.

In a Two-Slit Experiment a Third Order Bright Fringe Is