Two waves are superimposed whose ratio of intensities is 9: 1 . The ratio of maximum and minimum intensity is

Step-by-step solution

Given, the ratio of intensities, we can obtain ratio of amplitudes of the waves: aligned & I₁ I₁ = ( a₁ a₂ )^2= 9 1 & a₁ a₂ = 3 1 aligned I_ I_ = (a₁+a₂ )^2 (a₁-a₂ )^2 = (3 a₂+a₂ )^2 (3 a₂-a₂ )^2 = ( 4 a₂ 2 a₂ )^2= 4 1