Fill the gaps on wave optics

Exercise and reference answers

Missing parts

1. Answer

   phase

   Choices

   1. phase
   2. speed
   3. energy

2. Answer

   spherical

   Choices

   1. spherical
   2. plane
   3. conical

3. Answer

   coherent

   Choices

   1. coherent
   2. incoherent
   3. polarised

4. Answer

   red

   Choices

   1. red
   2. blue
   3. grey

Complete the statement

A wavefront is a surface of constant {0}. Wavefronts from a point source are {1}. Sources with a steady phase gap are {2}. A receding source gives a {3} shift.

Instructions

Tap a word to drop it into the empty slot.

Explanation