A person cannot see distinctly any object placed beyond 40cm from his eye. Find the power of lens whicTFwill enable him to see distant stars clearly is?.

A short-sighted person cannot see objects beyond 50 cm from the eye. Determine the focal length and power of the lens that will enable him to see distant objects clearly.

A person cannot see distinctly object kept beyond 2 m. This defect can be corrected by using a lens of power

A myopic person can see things clearly only when they lie between 10 cm and 100 cm from his eye. Which lens will enable him to see the moon clearly.

A certain person can see clearly objects lying between 20 cm and 250 cm from his eye. What spectacles are required to enable him to see distant objects clearly ? When he is wearing these spectacles, what is his least distance of distinct vision ?

A short-sighted person cannot see objects situated beyond 2m from him distinctly. What should be the power of the lens which he should use for seeing distant objects clearly?

A short-sighted person cannot see objects situated beyond 2m from him distinctly. What should be the power of the lens which he should use for seeing distant objects clearly ?

If far point of myopic person is 50 cm in front of the eye, what is the power of lens required to enable him to see very distant objects clearly ?