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(a) Figure shows two isosceles right ang...

(a) Figure shows two isosceles right angled prisms A and B and the light rays incident on the prism A. complete the diagram to show the rays emerging out of the prism B.
(b) State the principle used for completing the ray diagram in part (a) above.

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ICSE-REFRACTION OF LIGHT AT PLANE SURFACES-EXERCISE-4(D)
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