The ratio of intensity of two waves in the Young's double slits experiment is 25:9. The ratio of amplitude of two waves will be, respectively:
Answer & explanation
Correct answer: option 2
The correct answer is Option (2) → \( \displaystyle\frac{5}{3} \)
The intensity of a wave is proportional to the square of its amplitude, \( I\propto A^{2} \).
\( \displaystyle \frac{I_1}{I_2} = \frac{A_1^{2}}{A_2^{2}} = \frac{25}{9} \)
\( \displaystyle \frac{A_1}{A_2} = \sqrt{\frac{25}{9}} = \frac{5}{3} \)