Uses of Mirror and Lenses

Which of the following tells the difference between lenses and mirrors?

• Lenses refract light, mirrors reflect light.

• Lenses make object appear larger, while mirrors give exact copy of object.

• Lenses reflect light, mirrors refract light.

• Lenses produce virtual image; mirrors make real image.

Concave mirror____________________.

• bulges out toward the light source

• curves towards the center

• diverge light ray

• creates smaller image of an object

Which of the following uses concave lens?

• Magnifying glasses

• Person with hyperopia

• Nearsighted corrective eyeglasses

• All of the above

You see the reflection of analog type of clock without numbers in your plane mirrors. The image formed by the hands of the clock shows the time of 10:00. What is the real time?

• 2:00

• 1:00

• 7:00

• Still 10:00

Which mirror concept explains why the word AMBULANCE is written in reverse in an ambulance car?

• Multiple image

• Lateral inversion

• Virtual image and real image

• All of the above

What kind of mirror is used by dentists in examining tooth cavities?

• Plane mirror

• Concave mirror

• Convex mirror

• None of the above

Vehicle's side mirrors are___________.

• plane mirror

• concave mirror

• convex mirror

• None of the above

Which of the following statement is TRUE about virtual image?

• virtual image seems to appear behind the mirror and is upside down

• virtual image seems to appear behind the mirror and is seen in an upright position.

• virtual image formed after the light rarys are reflected from the mirror

• All of the above

The sun's rays are observed to focus at a point behind a lens. What kind of lens was used?

• converging lens

• diverging lens

• focusing lens

• none of the above

Looking through a concave lens, arm-length away can make object appear______.

• smaller and upright

• smaller and upright down

• larger and upright

• larger and upside down