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Question
A passenger in an aero plane shall
A passenger in an aero plane shall
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Solution
The correct option is C may see a primary and a secondary rainbow as concentric circles.
When we are on earth, a rainbow can be seen. The process involves refraction and internal reflection of sunlight by water droplets in air. The refracted rays from the droplets reaches our eyes. Even if we increase our altitude, still rainbow is visible. A plane’s altitude is well within the atmosphere. Hence, this phenomenon is still visible by a passenger in an airplane.
When some of the light passes through a second water droplet, we get a secondary rainbow. This process includes 2 total internal reflection. Hence, we can conclude that the passengers can see a secondary rainbow.
At an altitude, there is no ground ahead of you. Hence, when a rainbow forms, you can see a full circle. On the ground, you may or may not see a full circle depending on the position of the rainbow. However, on a plane, you never see incomplete arcs rather full circle.
Final Answer: (b)
When we are on earth, a rainbow can be seen. The process involves refraction and internal reflection of sunlight by water droplets in air. The refracted rays from the droplets reaches our eyes. Even if we increase our altitude, still rainbow is visible. A plane’s altitude is well within the atmosphere. Hence, this phenomenon is still visible by a passenger in an airplane.
When some of the light passes through a second water droplet, we get a secondary rainbow. This process includes 2 total internal reflection. Hence, we can conclude that the passengers can see a secondary rainbow.
At an altitude, there is no ground ahead of you. Hence, when a rainbow forms, you can see a full circle. On the ground, you may or may not see a full circle depending on the position of the rainbow. However, on a plane, you never see incomplete arcs rather full circle.
Final Answer: (b)
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