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  • A passenger in an aeroplane shall A. never see a rainbow. B. may see a primary and a secondary rainbow as concentric circles. C. may see a primary and a secondary rainbow as concentric arcs. D. shall never see a secondary rainbow.

A passenger in an aeroplane shall

A. never see a rainbow.
B. may see a primary and a secondary rainbow as concentric circles.
C. may see a primary and a secondary rainbow as concentric arcs.
D. shall never see a secondary rainbow.

Answers (1)

The answer is the option (b)

A passenger has an aeroplane has the possibility to (b) may see a primary and a secondary rainbow as concentric circles because the plane is at an extremely high altitude.

In case of an object moving towards the convex lens with a constant speed from infinity to focus, the image will move slower in the beginning and then faster.

V_{i}=\left ( \frac{f}{f+u} \right )^{2}V_{o}

And if an object approaches the lens, the image moves away from the lens with a non-uniform acceleration.

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