Department of Pre-University Education, KarnatakaPUC Karnataka Science Class 12

# A Young'S Double Slit Experiment is Performed with White Light. - Physics

Short Note

A Young's double slit experiment is performed with white light.

(a) The central fringe will be white.

(b) There will not be a completely dark fringe.

(c) The fringe next to the central will be red.

(d) The fringe next to the central will be violet.

#### Solution

(a) The central fringe will be white.

(b) There will not be a completely dark fringe.

(d) The fringe next to the central will be violet.

The superposition of all the colours at the central maxima gives the central band a white colour. As we go from the centre to corner, the fringe colour goes from violet to red. There will not be a completely dark fringe, as complete destructive interference does not take place.

Is there an error in this question or solution?

#### APPEARS IN

HC Verma Class 11, 12 Concepts of Physics 1
Chapter 17 Light Waves
MCQ | Q 9 | Page 380