Question on: JAMB Physics - 2023
Rainbow formation is as a result of the combination of which of the following phenomena?
(i) Reflection
(ii) Dispersion
(iii) Total internal reflection
(iv) Refraction
A
(ii) and (iv) only
B
(i), (iii) and (iv) only
C
(ii), (iii) and (iv) only
D
(i), (ii) and (iv) only
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Correct Option: C
The correct option is: (ii), (iii), and (iv) only. Rainbow formation involves the following phenomena:
(ii) Dispersion: Different colours of light are separated due to varying wavelengths.
(iii) Total internal reflection: Light is internally reflected within raindrops, contributing to the formation of a rainbow.
(iv) Refraction: Light undergoes bending as it enters and exits raindrops, contributing to the overall phenomenon.
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