Lens and Optics

What does the word "converging" mean?

• to separate
• to come together
• parallel 
• perpendicular

How many images can a converging lens make?

• 1

• 3

• 4

• 7

A converging lens is also known as a ____ lens.

• convex
• concave
• double
• refracted

When an object is placed on the focal point in front of a convex lens, the image produced is ___.

• real, reduced, and inverted
• real, enlarged, and inverted
• real, true, and inverted
• There is no image

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

What does the word "diverging" mean?

• to spread apart
• to come together
• parallel
• perpendicular

How many images does a diverging lens make?

• 1
• 3
• 5
• 7

A diverging lens is also known as a ____lens.

• refracted
• diffracted
• convex
• concave

Images produced by a diverging lens are always _____.

• real, reduced, and inverted
• virtual, reduced, and upright
• real, enlarged, and inverted
• virtual, enlarged, and upright

Where can an object be placed in front of a concave lens in order to produce a "no image"?

• On the focal point.
• This is not possible for a concave lens.
• Between the lens and the focal point.
• Beyond the focal point.