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
(ii) and (iv) only
(i), (iii) and (iv) only
(ii), (iii) and (iv) only
(i), (ii) and (iv) only
Explanation
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Total internal reflection is not a significant factor in rainbow formation. While refraction, dispersion, and reflection are key components, total internal reflection, which requires light to travel from a denser to a less dense medium at an angle greater than the critical angle, is not the primary mechanism involved in a rainbow's creation . A rainbow is formed when sunlight refracts (bends) as it enters a water droplet, then reflects internally off the back of the droplet, and finally refracts again as it exits the droplet . Dispersion, the separation of white light into its constituent colors, occurs during the refraction process . The reflection is a single internal reflection, not total internal reflection .
The answer is not correct 😭😭😭😭
All the phenomena mentioned (refraction, dispersion, total internal reflection, and reflection) play a role in the formation of a rainbow. However, the most directly involved in the process are refraction (as light enters and exits the droplet), dispersion (separating colors), and total internal reflection (reflecting light back). Reflection is a part of the process but is often considered in the context of total internal reflection in rainbows.
The best answer is C.
this answer is very wrong pls update these answers for the sale of those writing Jamb
Yoo dispersion should be the most important reason because it actually separates white light into different colors based on wavelength.
