A person cannot see distinctly object kept beyond 2 m. This defect can – InterviewSolution

1.	A person cannot see distinctly object kept beyond 2 m. This defect can be corrected by using a lens of power
Answer» `+0.5` D `-0.5` D `+0.2` D `-0.2` D Solution :As the PERSON has the eye defect, myopia, therefore, a CONCAVE lens has to be USED WHOSE focal LENGTH will be, f = - 2 m (using sign conventation). Thus, Power,`P=(1)/(f)`(where, f is focal length in metre) `= (1)/(-2)=-0.5D`

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