Pick the wrong answer in the context with rainbow.

1. When the light rays undergo two internal reflections in a water drop, a secondary rainbow is formed.

2. The order of colours is reversed in the secondary rainbow.

3. An observer can see a rainbow when his front is towards the sun.

4. Rainbow is a combined effect of dispersion, refraction and reflection of sunlight.

Doubtly Asked 30 Oct 2026 NEET UG 2019 neet Save WhatsApp Report

1 answer

Best answer

Answer: 3. An observer can see a rainbow when his front is towards the sun.

We pick the wrong statement.

Two internal reflections give the secondary rainbow. Correct.
In the secondary rainbow the order of colours is reversed. Correct.
A rainbow is the combined effect of dispersion, refraction and reflection. Correct.
To see a rainbow the observer must have his back towards the Sun, because the light returns at about \(42^\circ\) to the incident direction. So option 3 is wrong.

Doubtly AI · 30 Oct 2026 AI-generated · not yet verified Report

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