Focal Point Lenses

What does the word "converging" mean?

• to separate
• to come together
• parallel 
• perpendicular

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

A diverging lens is also known as a ____lens.

• refracted
• diffracted
• convex
• concave

This image is.....

• inverted and smaller
• inverted and larger
• not inverted and smaller
• not inverted and larger

This image is...

• Inverted and smaller
• inverted and bigger
• not inverted and smaller
• not inverted and bigger

A converging lens produces an image twice the size of the original. If the object is placed 0.40 m from the lens, and the image produced is 0.80 m from the lens. What is the focal length of the lens? 

• 0.351 m
• 0.267 m
• 0.416 m
• 0.112 m

A tree 20 m high is located 40 m from the converging lens of focal length 0.08 m.Calculate the distance from the lens to the image.

• 0.08 m

• 0.01 m

• 0.10 m

• 0.20 m