M9

Question 1

What is Murpheys law

Answer 1

If something can go wrong, sooner or later it will go wrong

Question 2

What is the cornea

Answer 2

The clear window at the front of the eye that allows light to enter

Question 3

What is the cornea responsible for

Answer 3

70-80% of the total focusing ability also known as refraction of the eye

Question 4

What is the coloured part of the eye

Answer 4

Iris

Question 5

What is the purpose of the iris

Answer 5

How much light can enter the eye

Question 6

How does the iris control how much light enters the eye

Answer 6

By varying the size of the pupil

Question 7

By what factor can light be adjusted in the eye

Answer 7

5:1