Question 120: Waves Optics

Question

Two light beams of intensities in the ratio of 9 : 4 are allowed to interfere. The ratio of the intensity of maxima and minima will be :

Accepted Answer

$${{{I_{\max }}} \over {{I_{\min }}}} = {\left( {{{\sqrt {{I_1}}  + \sqrt {{I_2}} } \over {\sqrt {{I_1}}  - \sqrt {{I_2}} }}} \right)^2} = {\left( {{5 \over 1}} \right)^2}$$
$$ = {{25} \over 1}$$

Answer

2 : 3

Answer

16 : 81

Answer

25 : 169

Answer

25 : 1

Waves Optics

Two light beams of intensities in the ratio of 9 : 4 are allowed to interfere. The ratio of the intensity of maxima and minima will be :

Choose the correct answer: