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Where do the three rays in a ray diagram start?
A.) at a focal point on the opposite side of the lens
B.) at three different points on the object
C.) at a focal point on the same side of the lens
D.) at a single point on the object

Respuesta :

The three rays in a ray diagram start at a single point on the object.

Answer;

D.) at a single point on the object

Explanation;

The three rays in a ray diagram start from a single point on the object.

The three rays are called the the principal rays that are used to determine the location and the size of the image. These are;

  • A ray from the top of the object parallel to the principal axis and perpendicular to the lens, will be refracted through the principal focal point.
  • A ray that passes through the center of the lens from the top of the object , it will be undeflected.
  • A ray through the principal focal point  from the top of the object, it will be refracted or proceed parallel to the principal axis upon exit from the lens.

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