A person is unable to see distant objects. Which among the following diagram represents the defect of vision he is suffering from.

Statement $\mathrm{P} :$ Myopia can be corrected by using a bi$‐$concave lens.

Statement $\mathrm{Q} :$ For a bi$‐$concave lens, $f$ value is positive.

The human eye forms the image of an object at its-

Select the correct alternative from those given below each statement and write the completed statement :
The part of eye that regulates and controls the amount of light entering the eye is ________

Match the following:

$\left(1\right)$ Between the aqueous humour                                                                                   (X) Retina

and the lens, there is a muscular diaphragm.

$\left(2\right)$ Small hole in a muscular diagram,                                                                              (Y) Pupil

whereas diaphragm lies between the

aqueous humour and the eye lens.

$\left(3\right)$ The place where the image forms                                                                               (Z) Iris

at black side of eye ball.

Consider the following vision defects listed in Columns I and II and the corrective measures in Column III. Choose the correct combination.