1. A person views his image in front of a mirror. His image appeared to be

real, inverted, and larger than him. What kind of mirror did he use?

a. plane

c. convex

b. concave

d. all of the above

2. Which of the following cannot be polarized?

a. sunlight

c. sound waves e. radio waves

b. laser light

d. a transverse wave on a string

3. A girl standing 2 meter in front of a plane mirror wishes to take a picture of

her reflection. To what object distance should she set her camera lens?

a. 0.5 meters c. 2 meters

b. 1 meter

d. 4 meters

4. Which optical device(s) on the list below will always give a virtual image of

a real object regardless of how far the object is away from the device?

I. plane mirror

II. convex lens

III. concave lens

a. I and II only

c. I and III only

b. II and III only

d. I, II and III

5. Light goes from medium A to medium B with an angle of incidence at 40o

and the angle of refraction at 30o . How will you compare the speed of light in

B with that in A?

a. The speed of light in B is less than that in A.

b. The speed of light in B is the same as that in A.

c. The speed of light in B is greater than that in A.

d. Any of the above, depending on the specific medium.