Assertion (A): During rainbow formation, the light disperses into its seven constituent colours. Reason (R): Air has lots of suspended dust particles. [0.8 mark] Both A and R are true, and R is the correct explanation of A. Both A and R are true, and R is not the correct explanation of A. O A is true, but R is false. O A is false, but R is true plz sure answer
Answers
Answer:
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Explanation:
Answer:
In the given assertion reason both A and R are true but R is not the correct explanation of A.
Explanation:
The assertion is true. During the formation of the rainbow in the sky, the light, or more precisely the sunlight disperses into its major seven component colours. The main cause for this is the dispersion of the sunlight by tiny or very small water drops or droplets, which are generally present in the atmosphere. A rainbow is formed always in a direction that is usually opposite to Sun. They usually refract and then disperse the incident sunlight, then reflect the rays internally, and finally refract it once again whenever it comes out of the tiny raindrop surface. And therefore the beautiful seven coloured rainbow is observed.
Air is a composite or heterogeneous mixture of many tiny dust particles and water droplets embedded in it. It also contains many gases like Nitrogen, Oxygen, Sulphur etc.
The reason is also true but is not the correct explanation for the above-given assertion.