Chapter 21: Geometric optics

Your image behind a plane mirror is at a distance equal to

• a. half your height.

• b. half your distance from the mirror.

• c. your distance in front of the mirror.

• d. slightly more than your distance in front of the mirror.

Refraction occurs when a wave crosses a boundary and changes

• a. speed and direction.

• b. intensity.

• c. frequency.

• d. amplitude.

The concave mirror has it's reflected area 

• inwards 
• outwards

What type of image does this lens form?

• Virtual image
• Real Image
• No Image

Compared to the object in front the lens, its image is.....

• inverted and diminished

• inverted and magnified

• upright and diminished

• upright and magnified

Concave lenses always produce images that are

• Virtual, upright, diminished

• Real, inverted, magnified

• Real, inverted, diminished

• Virtual, upright, magnified

A lens that curves inwards

• Converse

• Convex

• Convection

• Concave

A lens that curves outwards

• Converse

• Concave

• Convex

• Convection

The bending of waves as they pass from one substance into another.

• Reaction
• Reflection
• Refraction
• Repost

This image is

• real.

• virtual.