FREE ABO NOCE Question and Answers

Question 1

You can change a lens' focal length by:

Accepted Answer

Changing the curvature of one surface

Answer

Coating the surface

Answer

Making the lens smaller

Answer

Making the lens bigger

Question 2

Meniscus, equiconcave, and flat concave are varieties of

Accepted Answer

Minus lenses

Answer

spherocylinder lenses

Answer

Astigmatic lenses

Answer

Plus lenses

Question 3

What sort of lens has a surface that is both convex and concave?

Accepted Answer

Meniscus

Answer

Biconvex

Answer

Biconcave

Answer

Plano-convex

Question 4

A lens's power is indicated by the word "axis."

Accepted Answer

False

Answer

True

Question 5

What word best describes the direction change of light as it moves from one medium to another?

Accepted Answer

Refraction

Answer

Reflection

Answer

Retraction

Answer

Diffusion

Question 6

What controls the quantity of light that reaches the eye?

Accepted Answer

Iris

Answer

Pupil

Answer

Crystalline Lens

Answer

Fovea

Question 7

What's the term of the phenomenon where the eye tends to turn from its natural position?

Accepted Answer

Phoria

Answer

Exotropia

Answer

Tropia

Answer

Exophoria