CH 15 PHYSICAL OPTICS CLASS 12 PHYSICS NEW BOOK MCQS SOLUTION AND EXPLANATION BY PHYSICS INN-ABDULLAH

Topic 15.1: Wavefront Answer Key & Hints (MCQs) (b) Sol: A wavefront is defined as an imaginary surface connecting points in the same phase. (b) Sol: The shortest distance between adjacent wavefronts is equal to one wavelength ( ). (b) Sol: A ray is a line drawn perpendicular to a wavefront showing the direction of propagation. (c) Sol: A line source creates straight/plane wavefronts in two dimensions. (b) Sol: Direction of energy transfer is perpendicular to any point on the wavefront surface. (c…