In Young's double-slit experiment, the y-coordinate of central maxima and 10th maxima are 2 cm and 5 cm, respectively, When the YDSE apparatus is immersed in a liquid of refreactive index 1.5, the corresponding y-coordinates will be

Explanation

Fringe width `beta prop lambda` . Therefore, `lambda` and hence `beta` will decrease 1.5 times when immersed inliquid. The distance between central maxima and 10th maxima is 3 cm in vacuum. When immersed in liquid it will reduce to 2 cm . Position of central maxima will not change while 10th maxima will be obtained at y = 4 cm .