21. While light is incident normally on a glass slab.
(a) Red light travels faster than other colours
(b) Violet light travels faster than other colours
(c) Yellow light travels faster than other colours
(d) All colours travel with the same speed
Answers
Answered by
1
Answer:
Since wavelength increases from Violet to Red, Red travels the fastest.
Explanation:
please mark as branliest answer
Similar questions