Question

When the screen is moved away from plane of slits in YDSE then the effect on interference fringes is; (a) Angular separation of fringes increases but linear separation or fringe width decreases; (b)Angular separation of fringes remains constant but the linear separation or fringe width increases; (c) Both remains constant; (d)None

Answer 1

ans is b as angular separation does not depend on D..dist of screen