INTERFERENCE

INTRODUCTION TO WAVE OPTICS HUYGENS PRINCIPLE

Wave Optics. To explain some phenomena, such as interference and diffraction of light, it is necessary to go beyond geometrical optics.

TOPICS COVERED ARE:-

how waves superimpose,wave front , wavelets,concept of eather medium

TOPICS COVERED ARE :

• • PHASE ANGLE

  • PHASE DIFFERENCE

  • AMPLITUDE OF WAVE

  • MATHEMATICAL REPRESENTATION OF WAVE

CONCEPTS COVERED :

1) PRINCIPLE OF SUPERPOSITION OF TWO WAVES

The principle of superposition may be applied to waves whenever two (or more) waves travelling through the same medium at the same time. The waves pass through each other without being disturbed. The net displacement of the medium at any point in space or time, is simply the sum of the individual wave displacements.

ENGEENERING PHYSICS B.tech fist year

contents covered

1) COHARENT WAVES AND MONOCROMATIC LIGHT

2) YOUNGS DOUBLE SLIT EXPERIMENT

3) DERIVATION FOR HIGHT OF Nth fringe

INTERFERENCE PART 1.5 FRINGE WIDTH & NUMERICAL

ENGINEERING PHYSICS

CONCEPTS COVERED

1) FRINGE WIDTH

2) NUMERICAL ON Y.D.S.E

INTERFERENCE PART 1.7 INTERFERENCE DUE TO THIN GLASS FILM , TYPES OF INTERFERENCE & STROKES THEOREM

ENGINEERING PHYSICS

TOPICS COVERED ARE -

1) TYPES OF INTERFERENCE

2) STROKES THEOREM

3)INTERFERENCE DUE TO REFLECTION BY THIN GLASS FLIM

INTERFERENCE PART 1.8 NEWTONS RING

TOPICS COVERED ARE :-

1) PATH DIFFERENCE B/W 2 REFLECTED LIGHT RAYS BY WEDGE SHAPED FILM

2) NEWTONS RING WORKING

3) DERIVATION OF A RELATION B/W DIAMETER OF RINGS AND RADIUS OF CURVATURE OF PLANO CONVEX LENS