| After tracing the path of a ray of light through a glass prism a student marked the angle of incidence \[(\angle i),\] angle of refraction \[(\angle r),\] angle of emergence \[(\angle e)\] and the angle of deviation \[(\angle D)\] as shown in the diagram. The correctly marked angles are: |
 |
| (a) \[\angle i\] and \[\angle r\] |
| (b) \[\angle i\] and \[\angle e\] |
| (c) \[\angle i,\,\angle e\] and \[\angle D\] |
| (d) \[\angle i,\,\angle r\] and \[\angle e\] |
Answer:
(b) \[\angle i\] and \[\angle e\]
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