AP EAPCET 12 July 2022 Shift 2 Paper

In a Young's double slit experiment, a set of parallel slits with a separation of 0.1mm is illuminated by light having a wavelength of 620nm. The interference pattern is observed on a screen 4m from the slits. The difference in the path lengths of the light waves from each of the slits to the location of a 4‌th ‌ (fourth) order bright fringe on the screen is