Lenses

Front

What type of lens do you have in your eye?

Back

Convex lens are present in the human eye, allowing it to focus light onto the retina.

Front

What happens to light waves when they move from air to a glass lens?

Back

They slow down and change direction due to refraction.

Front

What is the value of d_i for a virtual image?

Back

The value of d_i for a virtual image is negative.

Front

What is the point where light rays converge called?

Back

The focal point.

Front

What type of image is described as inverted and smaller?

Back

An image that is inverted and smaller is typically formed by a concave lens.

Front

What is a concave lens?

Back

A concave lens is a lens that diverges light rays and is thinner at the center than at the edges.

Front

What is a convex lens?

Back

A convex lens is a lens that converges light rays and is thicker at the center than at the edges.

Front

What is refraction?

Back

Refraction is the bending of light as it passes from one medium to another with different densities.

Front

What is the focal length of a lens?

Back

The focal length is the distance from the lens to the focal point.

Front

What type of image is formed by a convex lens when the object is beyond the focal point?

Back

The image is real, inverted, and larger.