The diagram shows the paths of two rays of light from an object The object is 10 cm in front of a lens as shown in the diagram Which of the following statements is true about the given diagram?

The lens is converging and focal length of lens is greater than 10 cm

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The lens is converging and focal length of lens is less than 10 cm

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The lens is diverging and focal length of lens is greater than 10 cm

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The lens is diverging and focal length of lens is less than 10 cm

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Solution

The correct option is A The lens is converging and focal length of lens is greater than 10 cm
Answer is A.

A lens which deviates the path of a ray so that it is deflected more toward the optic axis is a converging lens.
A converging lens can form a real image or a virtual image of a real object. Only when the object is a distance from the lens greater than the focal length will a real image be formed.
A converging lens is said to have positive focal length. A converging lens causes exiting rays to be more convergent coming out than they were entering the lens.
Hence, the lens is converging and focal length of lens is greater than 10 cm.

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