Consider a plane parallel beam of light ...

Consider a plane parallel beam of light incident on a plano-cylindrical lens as shown below. Which of the following will you observe on a screen placed at the focal plane of the lens ?

The screen will be uniformly illuminated.

There will be a single bright spot on the screen.

There will be a single bright line on the screen parallel to the x-axis

There will be a single bright line on the screen parallel to the y-axis

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