Q3 of 284 Page 219

A beam of light travelling in a rectangular glass slab emerges into air. Draw a ray-diagram indicating the change in its path.

A beam of light travelling in a rectangular glass slab emerges into air. The ray diagram indicating its path is as shown.


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1

If a ray of light goes from a rarer medium to a denser medium, will it bend towards the normal or away from it?

 2

If a ray of light goes from a denser medium to a rarer medium, will it bend towards the normal or away from the normal ?

 4

A beam of light travelling in air is incident on water. Draw a ray-diagram indicating the change in its path in water.

 5

A ray of light travelling in water emerges into air. Draw a ray-diagram indicating the change in its path.