Question

The contrast in the fringes in any interference pattern depends on –

• A. Fringe width
• B. Wavelength
• C. Intensity ratio of the sources
• D. Distance between the sources

Answer 1

Answer: (C)

Intensity ratio of the sources

Answer 2

Fringe visibility gives the contrast of the fringes given by

V = $\frac{2\sqrt{I_{1}/I_{2}}}{1 + I_{1}/I_{2}}$