Tiêu đề 10.Wave-Optics-f.pdf ✅

Physics Smart Booklet 1 10.WAVE OPTICS Physics Smart Booklet Theory + NCERT MCQs + Topic Wise Practice MCQs + NEET PYQs
Physics Smart Booklet 2

Physics Smart Booklet 4 Source Wavefront Schematic representation Point Spherical Linear Cylindrical Source at large distance Planar Reflection of a plane wave by a plane surface and proof of laws of reflection using Huygens’ Principle Let XY represent the surface separating medium 1 and medium 2 as shown in the figure. Let v1 and v2 be the speeds of light in medium 1 and medium 2 respectively. Let a plane wavefront AB propagating in the direction OA incident on the interface at an angle ‘i’ as shown in the figure. If ‘t’ is the time taken by the wavefront to travel the distance BC, then, BC = v 1t In order to determine the shape of refracted wavefront, we construct a sphere of radius v2t from point A inside the second medium. Draw the tangent CD to this sphere from C. Then represents the refracted wavefront. Further, AD = v2t Refraction on the basis of Huygens theory MM1 is a surface separating two media rarer and denser figure. C1 is the velocity light in rarer medium and C2 in the denser. AB is the incident plane wave front A‛B‛ is the refracted wavefront such that BA‛ = C1t and AB‛ = C2t X Y O D