Which of the following does not have a streamlined shape?

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Solution

The correct option is C
Aeroplanes, submarines, modern cars, etc. are designed to have a streamlined structure. This is done so that they experience minimum drag from the fluid through which they are travelling.

The friction offered by the liquid depends on:

Nature of the liquid (denser the fluid, more will be the drag)

Shape of the object (streamlining the body will result in less drag)

Speed of the object in the liquid (more the speed, more will be the drag)

Out of the given options, the front part of the train is flat. Therefore, it is not a streamlined body.

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