Question

4. When a ray of light passing from air on to a plane parallel faced glass slab,

the angle of emergence is
i will mark the ans
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Answer 1

Explanation:

The emergent ray shows a lateral shift from the original path of the light. When the light is passing through the glass its velocity decreases and when comes out of the glass slab its velocity increases and the light ray traces the same direction in the air. Hence incident and emergent rays are parallel to each other.

Answer 2

Answer:

reflection will be the answer

Explanation:

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