Concave Lens Ray Diagram Quiz

What is the primary purpose of drawing ray diagrams for concave lenses?

• To measure the thickness of the lens

• To understand the path of light rays and image formation

• To find the focal length of the lens

• To determine the type of lens used

How many rules are primarily used to draw ray diagrams for concave lenses?

• Two

• One

• Four

• Three

According to the first rule, what happens to a light ray that passes through the optical center of a concave lens?

• It is refracted towards the principal focus

• It is absorbed by the lens

• It is refracted away from the principal focus

• It is not refracted at all

What is the behavior of a light ray that is parallel to the principal axis in a concave lens?

• It is absorbed by the lens

• It passes through the optical center

• It appears to diverge from the principal focus

• It converges at the principal focus

When a light ray is directed towards the principal focus of a concave lens, how is it refracted?

• It is absorbed by the lens

• It is refracted parallel to the principal axis

• It converges at the optical center

• It diverges away from the lens

What happens to a light ray that moves towards the principal focus of a concave lens?

• It converges at the optical center

• It is absorbed by the lens

• It is refracted parallel to the principal axis

• It diverges away from the lens

What is the nature of the image formed by a concave lens?

• Virtual, upright, and smaller

• Virtual, inverted, and larger

• Real, inverted, and larger

• Real, upright, and larger

What is the significance of extending the refracted rays backward in a ray diagram?

• To measure the thickness of the lens

• To locate the optical center

• To find the focal length

• To determine the position of the image

Which characteristic is NOT true for the image formed by a concave lens?

• It is larger than the object

• It is smaller than the object

• It is upright

• It is virtual

Why is the image formed by a concave lens considered virtual?

• Because it is formed on the same side as the object

• Because it is inverted

• Because it is larger than the object

• Because it can be projected on a screen