QUIZ 3-PHYSICS

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 rays

• 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 the analog type of clock without numbers in your plane mirror. 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

Which of the following statements 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 is formed after the light rays are reflected from the mirror

• All of the above

Vehicle’s side mirrors are __________.

• plane mirrors

• concave mirror

• convex mirror

• None of the above

To correct nearsightedness, a person is prescribed with what kind of lenses?

• Converging lens

• Diverging lens

• Focusing lens

• None of the above.

Which describes a concave lens?

• more transparent in the middle

• thinner in the middle than on the edges

• thinner on the edges than in the middle

• triangular in shape.