Q107. To observe interference of light (between) the two waves must: I. Be monochromatic II. Be phase coherent III. Obey the principle of linear superpositionPhysics — Optics, Nature of Light and Optical Instruments — Question 107 of 155A. I and II are correct onlyB. II and III correct onlyC. I and III are correct onlyD. I, II and III are correctPractice more Physics MCQs for entrance exam preparation on Examora.io.← Previous Question Next Question →