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The NCERT Solutions for Class 12 Physics Chapter 9 Ray Optics and Optical Instruments given here are the best study materials that students will come across to score good marks in the CBSE Class 12 board examination.
9.1 INTRODUCTION. Nature has endowed the human eye (retina) with the sensitivity to detect electromagnetic waves within a small range of the electromagnetic spectrum. Electromagnetic radiation belonging to this region of the spectrum (wavelength of about 400 nm to 750 nm) is called light.
Jan 9, 2024 · Ray Optics and Optical Instruments Class 12 Notes Chapter 9. 1. Ray Optics or Geometrical Optics In this optics, the light is considered as a ray which travels in a straight line. It states that for each and every object, there is an image. 2.
Dec 14, 2018 · NCERT Solutions for Class 12 Physics Chapter 9 Ray Optics and Optical Instruments. Question 1. A small candle, 2.5 cm in size is placed at 27 cm in front of a concave mirror of radius of curvature 36 cm.
3 days ago · Ray Optics and Optical Instruments Class 12 Notes of Physics - Free PDF Download. Class 12 Physics Chapter 9 Notes discusses various phenomena such as reflection, refraction, dispersion with the aid of a diagram of a ray of light.
Characteristics of Light. Light waves are electromagnetic waves, whose nature is transverse. The speed of light in vacuum is 3 x 108 mls but it is different in different media. The speed and wavelength of light change when it travels from one medium to another but its frequency remains unchanged. Important Terms.
6 days ago · The Class 12 NCERT chapter about Ray Optics focuses on how light behaves when it moves through convex and concave lenses. It shows how light travels in straight lines using different diagrams. The chapter also talks about the focal length of round mirrors.
