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Question
State the factors on which the angle of deviation depends.
Solution
The angle of deviation depends upon:
(i) The refracting angle of prism.
(ii) The material of the prism.
(iii) The colour of light.
(iv) The angle of incidence.
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Rahim recorded the following sets of observations while tracing the path of a ray of light passing through a rectangular glass slab for different angles of incidence.
S. No. |
Angle of incidence |
Angle of refraction |
Angle of emergence |
I |
45° |
41° |
45° |
II |
40° |
38° |
38° |
III |
45° |
41° |
40° |
IV |
41° |
45° |
41° |
The correct observation is recorded at serial number:
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(2) II
(3) III
(4) IV
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