What is the primary reason a concave lens cannot form a real image?

Practice question

Question

What is the primary reason a concave lens cannot form a real image?

Options

Choose one · Correct answer highlighted

It has a positive focal length It reflects light instead of refracting It diverges light rays Correct It absorbs most incident light

Explanation

A concave lens diverges light rays, preventing them from converging to a point on the opposite side. The rays appear to diverge from a virtual focal point on the same side as the object, resulting in a virtual image that cannot be projected, regardless of object position.

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