ICSE Class 10 Answered
How can I understand what are the angles of incidence of different prisms, in other words how to draw prisms of given angles of incidence or of refraction?????
Asked by sharmili13 | 12 Feb, 2016, 12:36: PM
Expert Answer
To draw refraction of light through a glass slab, note down the following points:
1. When a ray of light is incident on a glass prism, refraction or bending of light occurs two times: when it enters the prism and one when it leaves the prism.
2. When light enters from a rarer to denser medium, it bends towards the normal and when light enters from a denser to a rarer medium, it bends away from the normal.
3. The emergent ray is not parallel to the incident ray as in trhe case of a glass slab.
Answered by Romal Bhansali | 13 Feb, 2016, 11:47: PM
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