The ratio of intensities of two waves is 25:16. What is the ratio of amplitudes? If these two waves produce interference, then find the ratio of maximum and minimum intensities.


Correct option is


Let the amplitudes of the waves be a1 and a2 and the intensities I1 and I2. The ratio of intensities is 25:16. Then


In interference, the maximum and the minimum resultant amplitudes are (a1a2) and (a1 ~ a2) respectively.





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Two waves of same frequency have amplitude in the ratio 2:1. Find the ratio of the maximum and the minimum amplitudes and intensities in the region of interference.