Which of the following is not involved in formation of a rainbow?
(A) refraction
(B) angular dispersion
(C) angular deviation
(D) total internal reflection
1 Answers
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Name the plant hormones which are involved in growth promoting activities such as cell division, cell enlargement, pattern formation, tropic growth, f
Correct Answer - Auxin, Gibberellin, Cytokinin
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Consider following phenomena/applications : P) Mirage, Q) rainbow,
Correct answer is (A) Only R and S
2 Answers 17 views
State the conditions under which a rainbow can be seen.
A rainbow can be observed when there is a light shower with relatively large raindrop occurring during morning or evening time with enough sunlight around.
2 Answers 1 views
Is it possible to see primary and secondary rainbow simultaneously? Under what conditions?
Yes, it is possible to see primary and secondary rainbows simultaneously. This can occur when the centres of both the rainbows coincide.
2 Answers 2 views
How does a rainbow form?
1. The rainbow appears in the sky after a rainfall. 2. Water droplets present in the atmosphere act as small prism. 3. When sunlight enters these water droplets it gets refracted and...
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The number of colours in rainbow
Correct option is C) 7
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Formation of rainbow is example of …………….. spectrum.
Correct option is D) Visible
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Bright rainbow can be observed when the angle between incoming and outgoing light ray in a rain drop is …………………
Correct option is D) 0° to 42°
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Which one of the following phenomena of light are involved in the formation of a rainbow?
B) refraction, dispersion and total internal reflection
2 Answers 1 views
The formation of rainbow in the sky is due to the dispersion of sunlight by ………………….
Correct option is (B)water droplets
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