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CBSE Class 12 Physics 2019 Outside Delhi Set 1 Paper
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Question : 11 of 27
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Under which conditions can a rainbow be observed? Distinguish between a primary and a secondary rainbow.
Solution:
Conditions
Distinction between primary and secondary rainbow
Conditions:
(i) Sun must be on the back side of the observer.
(ii) Presence of water droplets.
Distinction between the primary and secondary rainbow.
Distinction between primary and secondary rainbow
Conditions:
(i) Sun must be on the back side of the observer.
(ii) Presence of water droplets.
Distinction between the primary and secondary rainbow.
| S.No | Primary rainbow | Secondary rainbow |
|---|---|---|
| 1 | Internal reflection takes place once. | Internal reflection takes place twice. |
| 2 | Intensity is higher | Intensity is low |
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