question_answer 6)

The far point of a myopic person is 80 cm in front of the eye. What is the nature and power of the lens required to correct the problem?

Answer:

                Here, concave lens is required.                 The corrective concave lens should form the image of the far off objects i.e. lying at infinity at the far point of the myopic person. So, using the lens formula,                                                   So,                            So,          Power of the lens,