S8 Phys (4) - Mirrors and lenses

Mirrors have surfaces that ___ light

• Reflect

• Refract

• Absorb

• Scatter

Lenses have surfaces that ___ light

• Reflect

• Refract

• Absorb

• Scatter

Why is the reflective surface on the back of a mirror?

• To maximize absorption

• To increase the smoothness

• To protect the reflective layer

• All of the above

According the law of reflection, the incident angle is

• Greater than the reflected angle

• Depends on the density of the material

• Alway equal to the reflected angle

• Is different for mirrors and lenses

You notice that the image produced by a mirror is upright and larger than the object. Which of the following is true about the image?

• It is a virtual image

• It is a real image

• The image will be in front of the mirror

• The image will be farther from the mirror compared to the object

A plane (flat) mirror will always form a ___ image

• Real

• Virtual

• Inverted

• Larger

Light rays coming from a mirror intercept. The image is

• Real

• Virtual

The focal point of a mirror describes

• How curved it is

• Its length

• If we expect it to form real images

• Its thickness

A concave mirror means that the reflective surface is

• Flat

• Curved inwards

• Curved outwards

A convex mirror has a reflective surface that is

• Flat

• Curved outwards

• Curved inwards