APPSC Group-I Prelims 2019 Paper II · Question 65

Question 65 of the APPSC Group-I Prelims 2019 Paper II (26 May 2019). Try it first, then open the answer and explanation.

1. Prelims 2019 · P-II · Q65 · Science & Technology · General Science

   Which of the following phenomena of light are involved in the formation of a rainbow ?

   క్రిందున్న కాంతి ఫినామినా ల్లో ఏది హరివిల్లు వచ్చేటప్పుడు పనిచేస్తుంది?

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   Answer: Refraction, dispersion and internal reflection

   సమాధానం: వక్రీభవనం, వ్యాప్తి, అంతర్గత ప్రతిబింబం

   Sunlight is refracted and dispersed into its colours as it enters a raindrop, reflected internally at the back of the drop, and refracted again as it leaves. Together these produce the spectrum of a rainbow.

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