Concave or Convex Lenses

Eyeglasses bend light to help the image form properly on the retina. The bending of light as it passes from one medium to another is called

• diffraction

• interference

• reflection

• refraction

Tags

NGSS.MS-PS4-2

Is a convex lens thicker or thinner in the middle?

• Thicker 

• Thinner 

If an object's distance from a convex lens were increased, the image would become which of the following?

• Larger and virtual

• Larger, only

• Smaller, only

• Smaller and virtual

Which describes a convex lens?

• triangular in shape

• more transparent in the middle

• thicker on the edges than in the middle

• thicker in the middle than on the edges

Tags

NGSS.MS-PS4-2

When an object is placed between the focal point and the convex lens, the image produced is ___.

• real, reduced, and inverted

• real, enlarged, and inverted

• virtual, enlarged, and upright

• virtual, reduced, and upright

This image is...

• Inverted and smaller

• inverted and bigger

• not inverted and smaller

• not inverted and bigger

Concave lenses are thick in the middle and thin in the edges.

• TRUE

• FALSE

Which one of these is a convex lens?

• 
• 
• None of the above

Which type of lens is used to correct nearsightedness?

• Concave lens

• Convex lens

• Cylindrical lens

• Bifocal lens

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

• They diverge

• They converge

• They reflect

• They scatter

Tags

NGSS.MS-PS4-2