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General Knowledge - Basic General Knowledge - Discussion

Discussion Forum : Basic General Knowledge - Section 4 (Q.No. 78)
Basic General Knowledge
78.
Primary rainbow is formed when light suffers
two internal refractions before emerging out of the drop
one internal refractions before emerging out of the drop
no internal refraction
either one or two internal refractions before emerging out of the drop
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
6 comments Page 1 of 1.
Viki said:   8 years ago
It shouldn't be A, because for two internal refractions we got a secondary rainbow.
Prashu said:   8 years ago
It should be A.
Prasanth said:   9 years ago
Internal refraction is a phenomenon in optics where light splits into different colours based on their wavelengths when they enter from one medium to another medium (due to the difference in refractive index).

Hence, we see different colours VIBGYOR - Violet, Indigo, Red, Blue, Green, Yellow, Orange and Red.
Nani said:   1 decade ago
If you don't mind can you elaborate the mean of internal reflection?
Divya said:   1 decade ago
Its not fraction. Its refraction same as Internal Reflection.
Sneha said:   1 decade ago
What is internal fraction?
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