In a prism, the angle between the Incident Ray and the Emergent Ray is called the Angle of Deviation angle-of-deviation---teachoo.jpg


The Angle of deviation in a prism depends upon:

  • Refractive index of the prism -  The larger the refractive index, the larger the angle of deviation.
  • Angle of the prism (i.e. Angle A in the figure) -  The larger the prism angle, the larger the deviation angle.
  • Angle of incidence: Angle of deviation first increases with increasing incidence angle, and then decreases.
  1. Class 10
  2. Chapter 11 Class 10 - Human Eye and Colourful World (Term 1)

About the Author

CA Maninder Singh's photo - Founder at Teachoo
CA Maninder Singh
CA Maninder Singh is a Chartered Accountant for the past 11 years and a teacher from the past 11 years. He teaches Science, Accounts and English at Teachoo