A person cannot see an object lying beyond 80 cm, where as a normal person can easily see the object distant 160 cm. The focal length and nature of the lens used to rectify this defect will be

A person cannot see an object lying beyond 80 cm, where as a normal pe

1.	A person cannot see an object lying beyond 80 cm, where as a normal person can easily see the object distant 160 cm. The focal length and nature of the lens used to rectify this defect will be
Answer» 160 CM, cancave 160 cm, convex 60 cm, concave 60 cm, convex Solution :`1/f=1/v-1/u`

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A person cannot see an object lying beyond 80 cm, where as a normal person can easily see the object distant 160 cm. The focal length and nature of the lens used to rectify this defect will be

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