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Question

During an experiment, a student places a candle beyond twice the focal length of a convex lens and records the image position and nature. Which of the following scenarios could result from this setup?

This question was previously asked in
RRB Group D 2025 Question Paper (18-Aug-2026) (Shift 1)
The correct answer is

An inverted, real, and diminished image forms between focus and twice the focal length

For a convex lens, ray tracing shows that when the object sits beyond 2F on one side, the rays converge to form an image on the opposite side.

The image lies between F and 2F, is real because rays actually meet there, is inverted with respect to the object, and is diminished in size.

An image of the same size forms only when the object is placed exactly at 2F, not beyond it.

A virtual erect enlarged image appears only when the object is placed between the lens and F, which is not the case here.

A real image can never be erect for a single convex lens, ruling out that scenario.

Hence, the setup produces an inverted, real, diminished image between focus and twice the focal length.

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Important Questions from Refraction and Reflection

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