Question

A person cannot see the objects beyond 3m distinctly. State the nature and focal length of the lens required to correct this defect of vision

Answer 1

Hi friend,

Here is your answer,

This is the case of farsightedness i.e. hypermetropia .
A convex lens should be used.
Focal length will be +3m .
Power of lens = ¹/f = ¹/₃ = 0.333... Dioptre


Hope this will help you...........
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Answer 2

heya mate

The answer of ur question is in pic

♢ The person is suffering from hypermetropia
♢ He should use convex lens




hope it helps