Question

define thin prism. ​

Answer 1

Answer:

prism is a devise used in optics in which total internal refraction occurs

Answer 2

Answer:

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here is your answer ,.../

Thin prisms introduce small angular beam deviations and are useful as alignment devices.

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The beam deviation δ is approximately independent of the incident angle: δ≈−(n−1)α Thin prisms are used for optometric correction of strabismus (a misalignment of the axes of the eyes).

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