CBSE Science Class 8

Light

Light - Chapter Wise CBSE Solved Question and Answer Based On NCERT

Points To Remember:

  • Light from an object enters our eyes then we see the objects around us
  • Light is reflected from all surfaces
  • Regular reflection takes place when light is incident on smooth, polished and regular surfaces
  • Irregular reflection takes place from rough surfaces
  • There are two laws of reflection: the angle of incidence is equal to the angle of reflection and incident rays, reflected rays and normal rays drawn at the point of incidence to the reflecting surface lies in the same plane
  • Two mirrors inclined to each other give multiple images
  • Sunlight consist of seven colours
  • Splitting of light into its constituent colours is called as dispersion
  • Reflected light can be reflected again
  • We should take proper care of our eyes
  • Visually challenged persons can read and write by using Braille system
  • Visually challenged persons developed their other senses more sharply to improve their interaction with the environment



Chapter 16 Light