Two monochromatic light beams of intensity 16 and 9 units are interfering. The ratio of intensities of bright and dark parts of the resultant pattern is: (1) $\frac{16}{9}$ (2) $\frac{4}{3}$ (3) $\frac{7}{1}$ (4) $\frac{49}{1}$
Two monochromatic light beams of intensity 16 and 9 units are interfering. The ratio of intensities of bright and dark parts of the resultant pattern is:\\
(1) $\frac{16}{9}$\\
(2) $\frac{4}{3}$\\
(3) $\frac{7}{1}$\\
(4) $\frac{49}{1}$