In dispersion without deviation - Vidyadip

MCQ

In dispersion without deviation

A
The emergent rays of all the colours are parallel to the incident ray
✓
Yellow coloured ray is parallel to the incident ray
C
Only red coloured ray is parallel to the incident ray
D
All the rays are parallel, but not parallel to the incident ray

✓

Answer

Correct option: B.

Yellow coloured ray is parallel to the incident ray

b
( b)Deviation is zero only for a particular colour, it is generally taken to be yellow.

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