JEE Main 2020 — Wave Optics Question with Solution

A Young's double-slit experiment is performed using monochromatic light of wavelength $$\lambda$$. The intensity of light at a point on the screen, where the path difference is $$\lambda$$, is K units. The intensity of light at a point where the path difference is $$\frac{\lambda }{6}$$ is given by $$\frac{nK}{12}$$, where n is an integer. The value of n is __________.