Q46. Plane parallel wave fronts encounter the interface between one medium and another, as shown below (lines represent crests). The wave speed is different in the two media. Choose the correct option.Physics — Optics, Nature of Light and Optical Instruments — Question 46 of 155A. The distance between wave fronts remains unchanged but the direction of wave front changes B. The distance between wave fronts and the direction of wave front both remain unchanged C. The distance between wave fronts and the direction of wave front both changes D. The distance between wave fronts changes but the direction of wave front remains unchanged Practice more Physics MCQs for entrance exam preparation on Examora.io.← Previous Question Next Question →