A short sighted person cannot see clearly beyond 2m. Caclulate the power of lens required to correct his vision.

A short sighted person cannot see clearly beyond 2 m . Calculate power of the lens required to correct his eye to normal vision.

A person cannot see objects clearly beyond 2.0 m . The power of lens required to correct his vision will be

A short sighted person cannot see clearly beyond 2 m. The focal length of the concave lens to correct his eye to normal vision should be :

A person cannot see objects clearly beyond 125 cm. The power of the lens to correct the vision is

A person cannot see objects clearly beyond 125 cm. The power of the lens to correct the vision is