Quick picks on ray optics

Exercise and reference answers

Questions

1. Question

   Rays close to the pole and axis are:

   Choices

   1. Paraxial
   2. Marginal
   3. Oblique

   Correct choice

   Paraxial

2. Question

   The point where reflected rays meet is the:

   Choices

   1. Pole
   2. Principal focus
   3. Vertex

   Correct choice

   Principal focus

3. Question

   The turn of a ray through a prism is the angle of:

   Choices

   1. Incidence
   2. Emergence
   3. Deviation

   Correct choice

   Deviation

4. Question

   The lens nearest the object is the:

   Choices

   1. Objective
   2. Eyepiece
   3. Condenser

   Correct choice

   Objective

5. Question

   A telescope magnifies objects that are:

   Choices

   1. Tiny
   2. Distant
   3. Hidden

   Correct choice

   Distant

Instructions

Tap the correct answer before the round moves on.

Explanation