Question

Two coherent sources of intensity ratio 4 : 1 produce an interference pattern. The fringe visibility will be –

• A. 1
• B. 0.8
• C. 0.4
• D. 0.6

Answer 1

Answer: (B)

0.8

Answer 2

x = 4

v = $\frac{2\sqrt{x}}{x + 1}$ = 0.8