General Physics 2 3rd Quarter Quiz 1

If an object is outside the focal point on a concave mirror, the image will be

• virtual and inverted

• virtual and upright.

• real and inverted

• None of the above

Images formed by concave lenses are

• real and inverted

• virtual

• enlarged

• None of the above

Answer explanation

You see the reflection of the clock without numbers in your plane mirror. The image formed by the hands of the clock shows the time of 3:30. What is the real time?

• 3:30

• 8:30

• 9:30

• 10:30

A light ray, travelling parallel to a concave mirror's axis, strikes the mirror's surface. The reflected ray

• passes through the mirror's focal point

• again travels parallel to the mirror's axis

• travels at right angles to the mirror's axis

• passes through the mirror's center of curvature axis

An object is placed between a concave mirror and its focal point. What is the type and orientation of the image formed?

• virtual and inverted

• real and inverted

• virtual and erect

• real and erect

What kind of mirror is used in automobiles and trucks to give the driver a wider area and smaller image of traffic behind him?

• plane mirrro

• convex mirror

• concave mirror

• none of the above

What type of mirror do dentists usually use to see clearly the images of our teeth?

• plane mirror

• convex mirror

• concave mirror

• none of the above

When a small object is placed on the principal axis of a concave mirror between the focus and the mirror, the image formed is _____________.

• erect, magnified, and virtual

• inverted, magnified, and real

• inverted, reduced, and real

• erect, reduced, and real

A white sheet of paper cannot act as mirror because it ______ the rays of light.

• diffracts

• diffuses

• interferes

• refract

You see your face clearly if you look down on a pool of still water. Which one of the following statements give the best explanation for this observation?

• Light entering the water is dispersed.

• Regular reflection of light happens on the surface of still water.

• Irregular reflection of light happens on the surface of still water.

• Light is reflected from the surface of water in different directions.