Q 12-10-014NEETJEE MainTop questionMedium
The intensities of two coherent sources are in the ratio $9 : 1$. The ratio of maximum to minimum intensity in their interference pattern is
Answer: (C) $4 : 1$
Amplitudes are in the ratio $3 : 1$. $\dfrac{I_{max}}{I_{min}} = \left(\dfrac{3 + 1}{3 - 1}\right)^2 = 4$.
Solution by Sreeraj P, M.Sc Physics