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Light And Electromagnetism Notes

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Published in: Physics
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 Light and Electromagnetism Notes

Ashok K / Hyderabad

11 years of teaching experience

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Teaches: Olympiad Exam Preparation, Physics, Science

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  1. Lenses - Construction of Ray Diagrams: Construction rules: i. Rays passing through C are undeviated ii. Rays parallel to the principal axis are refracted through F. iii. Rays passing through F are refracted parallel to the principal axis. Rule 1 Rule 3 Note Rule 2 01 Any two of the rules are enough for locating the image The intersection of the refracted rays gives the position of the image. Object beyond 2F Object at 2F 0 CD 1 Characteristics real inverted diminished Uses : Camera Characteristics Uses: real same size inverted Photocopier
  2. Object between 2F and F Object between F and C •e Object at infinity Object at F F 1 F eye 1 Characteristics real magnified inverted Uses : Projector Characteristics virtual Erect magnified Uses : Magnifying glass Characteristics real inverted diminished Characteristics Parallel beam