Refraction and Lenses Quiz

What is the primary function of a converging lens in terms of light refraction?

• To reflect light rays

• To diverge light rays

• To absorb light rays

• To converge light rays to form an image

Which ray passes through the focal point after traveling parallel to the principal axis?

• The ray that travels away from the lens

• The ray that travels through the lens center

• The ray that travels parallel to the principal axis

• The ray that travels towards the focal point

When drawing a ray diagram for an object beyond the 2f point, where do the refracted rays intersect?

• On the same side as the object

• At the focal point

• On the opposite side of the lens

• They do not intersect

In a ray diagram, what happens to the image of the bottom of the object if it is on the principal axis?

• It moves above the principal axis

• It disappears

• It remains on the principal axis

• It shifts to the left

For an object located at the 2f point, how do the refracted rays behave?

• They diverge

• They do not intersect

• They intersect at the focal point

• They intersect at a common location

What is the result when an object is placed between the focal point and the lens?

• The rays form a virtual image

• The rays diverge and no image is formed

• The rays converge at a point

• The rays form a real image

How do the refracted rays behave when an object is between the focal point and the 2f point?

• They converge to form a real image

• They form a virtual image

• They do not intersect

• They diverge

What happens to the refracted rays when an object is placed at the focal point?

• They travel parallel and do not intersect

• They converge to form an image

• They diverge and form a virtual image

• They reflect back

Why is no discernible image formed when an object is at the focal point?

• Because the rays diverge

• Because the rays converge at the lens

• Because the rays travel parallel and do not meet

• Because the rays are absorbed

What is the significance of the principal axis in ray diagrams?

• It is the path of the incident ray

• It is where the image is always formed

• It is the reference line for drawing rays

• It is where all rays converge