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The phenomenon of rainbow happens due to

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Important Questions on Optics

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Physics>Optics>Optics>Some Natural Phenomena Due to Sunlight
Mirage is the illusion of presence of water on the surface of earth. This is due to the 
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Physics>Optics>Optics>Some Natural Phenomena Due to Sunlight
Which of the following statement is correct?
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Physics>Optics>Optics>Some Natural Phenomena Due to Sunlight
Mirage is a phenomenon due to
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Physics>Optics>Optics>Some Natural Phenomena Due to Sunlight
Rainbow is a phenomenon due to:
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Physics>Optics>Optics>Some Natural Phenomena Due to Sunlight
The phenomenon involved in the reflection of radio-waves by ionosphere is similar to
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Physics>Optics>Optics>Some Natural Phenomena Due to Sunlight
Explain the formation of a rainbow.
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Physics>Optics>Optics>Some Natural Phenomena Due to Sunlight
How many internal reflections take place during the formation of a secondary rainbow?
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Physics>Optics>Optics>Some Natural Phenomena Due to Sunlight
How does a rainbow form?
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Physics>Optics>Optics>Some Natural Phenomena Due to Sunlight
The sun begins to be seen a little before it rises and continues to be seen for several minutes after it has actually set. Explain.
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Physics>Optics>Optics>Some Natural Phenomena Due to Sunlight
Sun (or moon), when near the horizon, appears elliptical and not circular. Explain why?
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Physics>Optics>Optics>Some Natural Phenomena Due to Sunlight

Give a suitable explanation for the given effect:

During sunset and sunrise, the sun is seen even when it is slightly below the horizon.

 

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Physics>Optics>Optics>Some Natural Phenomena Due to Sunlight
A passenger in an aeroplane shall
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Physics>Optics>Optics>Some Natural Phenomena Due to Sunlight
Is it possible to see primary and secondary rainbow simultaneously? Under what conditions?
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Physics>Optics>Optics>Some Natural Phenomena Due to Sunlight
A passenger in an aeroplane shall
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Physics>Optics>Optics>Some Natural Phenomena Due to Sunlight
We can see the sun even when it is little below the horizon because of
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Physics>Optics>Optics>Some Natural Phenomena Due to Sunlight
Explain in brief the formation of a secondary rainbow.
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Physics>Optics>Optics>Some Natural Phenomena Due to Sunlight
Between the primary and secondary rainbows, there is a dark band known as Alexander dark band. This is because
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Physics>Optics>Optics>Some Natural Phenomena Due to Sunlight
Explain the formation of a primary rainbow. For which angular range with the horizontal is it visible?
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Physics>Optics>Optics>Some Natural Phenomena Due to Sunlight
Why sun appears reddish at sunrise and sunset? 
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Physics>Optics>Optics>Some Natural Phenomena Due to Sunlight
Explain the formation of a secondary rainbow. For which angular range with the horizontal is it visible?