Myopia is a disease connected with eyes. Myopia is also called as Nearsightedness.

• It is a common vision condition in which you can see objects near to you clearly, but objects farther away are blurry.

• It occurs when the shape of your eye causes light rays to bend (refract) incorrectly, focusing images in front of your retina instead of on your retina.

A multiple of a number is the number multiplied by an integer.

The first four multiples of 9 are given by multiying the first 4 integers with number 9.

That is,

9 x 1 = 9

9 x 2 = 18

9 x 3 = 27

9 x 4 = 36

Hence, first four multiples of 9 are 9, 18, 27, 36.

The least penetrating power ray is Alpha rays.

The first Asian games was held in New Delhi. The Asian Games, were regulated by the Asian Games Federation (AGF) from the first Games in New Delhi, India, until the 1978 Games.

A nanosecond (ns) is an SI unit of time equal to one thousand-millionth of a second or one billionth of a second.

• That is, 1/1,000,000,000 of a second, or 10^−9 seconds.

The celebrated novel the godfather was authored by Mario Puzo.