Explain how refraction of light takes place through a triangular glass prism with the help of a neat ray diagram.
Answers
here α is angle of incident and β is angle of reflection, and light finaly reflect at angle θ which is called angle of deviation
❤️Here is your answer❤️
➡️Draw a triangular glass prism ABC
➡️Draw an insident ray (PE) inclined to one refracting surface AB
➡️Draw a normal at the refracting surface AB
at the point E
hence formed angle of incidence <i
note: snells law states that when a light ray pasess from rarer to denser it will bend towards the normal
➡️As per this law Refracted ray (EF) will bend towards the normal
hence formed angle of incidence <r
➡️Now draw a normal at the refracting surface AC at the point F
note: snells law states that when a light passes through senser to rarer it will bend away from the normal
➡️ As per this law Emergent ray(FS) will bend away from the normal
hence formed angle of emergance <e
➡️Now extend direction of refracted ray and emergent ray FS
➡️it will be meeting at the point (O)
hence formed angle of deviation <D
Note :<A which is formed between two lateral faces is the angle of prism
❤️hope it will help you❤️
