Two coherent sources of intensity 9: 4 produce interference. What is ratio of maxima and minima in interference pattern produced by them?

Question

Two coherent sources of intensity 9: 4 produce interference. What is ratio of maxima and minima in interference pattern produced by them? (A) 13: 5 (B) 5: 1 (C) 3: 2 (D) 25: 1

Tardigrade Admin · Accepted Answer

(A1/A2)=√(l1/I2)=(3/2) (I max /I min )=((3 x+2 x/3 x-2 x))2=((5/1))2=(25/1)

Q. Two coherent sources of intensity $9 : 4$ produce interference. What is ratio of maxima and minima in interference pattern produced by them?

13: 5

5: 1

3: 2

25: 1

$\frac{A _{1}}{A _{2}} = \frac{l _{1}}{I _{2}} = \frac{3}{2}$
$\frac{I _{m a x}}{I _{m i n}} = (\frac{3 x + 2 x}{3 x - 2 x})^{2} = (\frac{5}{1})^{2} = \frac{25}{1}$

Q. Two coherent sources of intensity 9:4 produce interference. What is ratio of maxima and minima in interference pattern produced by them?