https://drive.google.com/file/d/1cCr0hlk821uusBHeUqeydEACFslp4g3A/view?usp=drivesdk Class: XII Unit: Optics Chapter: Ray optics Topic: REFRACTION THROUGH A PRISM Learning Objectives 1. Relation among angle of prism, angle of deviation, angle if incidence and angle of emergence 2. Variation of angle of deviation with angle of incidence 3. Minimum angle of deviation 4. Conditions for minimum angle of deviation 5. Expression of refractive index in terms of angle of minimum deviation and angle of prism 6. Angle of minimum deviation for thin prism Prerequisite information 1. Angle of prism 2. Angle of incidence 3. Angle of refraction 4. Angle of emergence 5. Angle of deviation Relation among angle of prism, angle of deviation, angle if incidence and angle of emergence The above figure shows the passage of light through a triangular prism