Concave or Convex

Front

What is a convex lens?

Back

A convex lens is a lens that is thicker in the center than at the edges. It converges light rays that pass through it.

Front

What is a concave lens?

Back

A concave lens is a lens that is thinner in the center than at the edges. It diverges light rays that pass through it.

Front

What happens to light rays when they pass through a convex lens?

Back

Light rays converge to a point after passing through a convex lens.

Front

What happens to light rays when they pass through a concave lens?

Back

Light rays diverge and spread out after passing through a concave lens.

Front

Name a common use of a convex lens.

Back

Convex lenses are commonly used in magnifying glasses, cameras, and projectors.

Front

Name a common use of a concave lens.

Back

Concave lenses are commonly used in glasses for nearsightedness and in some types of flashlights.

Front

What is the focal point of a lens?

Back

The focal point is the point where light rays converge or appear to diverge after passing through a lens.

Front

How does the shape of a lens affect its function?

Back

The shape of a lens determines whether it is convex or concave, which affects how it bends light rays.

Front

What type of lens is used in a microscope?

Back

A convex lens is used in a microscope to magnify small objects.

Front

What type of lens is used in a projector?

Back

A convex lens is used in a projector to focus and enlarge images.