lenses

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

The pictures shows what a student observed when he looked through a hand lens at a penny.
What happens to light passing through a hand lens that makes the image of the penny appear larger? The light is-

• absorbed
• reflected
• refracted
• stopped

Tags

NGSS.MS-PS4-2

The point where the rays meet is known as....

• Fire
• the focal point
• refraction
• Plane of the lens

Tags

NGSS.HS-PS4-5

a real image...

• is produced by virtual rays and can be projected on a screen
• is produced by real rays and cannot be projected on a screen
• is produced by virtual images and cannot be projected on a screen
• is produced by real rays and can be projected on a screen

What type of image is formed when rays of light actually intersect?

• real
• virtual
• projected
• curved

An incident ray that is parallel to the principal axis...

• will reflect parallel to the principal axis
• will refract through the focal point
• will reflect through the center of curvature
• will continue along the same path through the lens

An image that you can see , but does not really exist is called which of the following?

• Real Image
• Fake Image
• Virtual Image
• Digital Image

a real image...

• is produced by virtual rays and can be projected on a screen
• is produced by real rays and cannot be projected on a screen
• is produced by virtual images and cannot be projected on a screen
• is produced by real rays and can be projected on a screen

Convex lenses can produce...

• Real, erect images
• Virtual, inverted images
• Real, inverted images
• no images form

What type of image is formed when rays of light actually intersect?

• real
• virtual
• projected
• curved