Question

In Young's experiment, the wavelength of monochromatic light used is 6000 $\overset{\circ}{A}$ . The optical path dilference between the rays from the two coherent sources at point P on the screen is 0.0075 mm and at a point Q on the screen is 0.0015 mm. Now many blight and dark bands are observed between the two points P and Q? (points P and Q are on the opposite sides of central bright hand). (Ans : 15 bright, 14 dark)

Answer 1

Answer:

14 was points and 0.0075