Question

A person cannot see the objects distinctly when placed at a distance less than 50cm identify the effect vision.......

Answer 1

.. Hypermetropia

b ... power of lens is 2 diaopter and nature of lens is convex lens.

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Answer 2

Answer:

The effect vision is hypermetropia.

Explanation:

A person cannot see the objects distinctly when placed at a distance less than 50 cm. Its defect is hypermetropia.

In this defect, the image is formed behind the retina. In this vision nearby  the objects are blurry.

We can use the convex lens to correct this defect.

This defect is called hypermetropia or longsightednss.

Hence, The effect vision is hypermetropia.