Question

Conditions for no deviation

Answer 1

Answer:

Explanation:There is only one condition when a ray of light entering a medium from a different medium will not deviate, when the ray is incident on the interface separating the two medium normally to the interface ie when the angle of incidence is zero. In this case there is no deviation from the original path.

Answer 2

Answer:

These are the condition for no deviation;

• incident ray should not be parallel to the base of the prism

• angle of incidence should not be equals to angle of emergence.

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