Question

Two waves having intensity ratio 25 : 4 produce interference. The ratio of maximum to minima intensity is

• A. 5:02
• B. 7:03
• C. 49:09:00
• D. 9:49

Answer 1

Answer: (C)

49:09:00

Answer 2

$\frac{I_{max}}{I_{max}}=\left[\frac{\sqrt{25}+\sqrt{4}}{\sqrt{25}-\sqrt{4}}\right]^2=\frac{49}{9}$