Science Tools with Lenses and Mirrors

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

Tags

NGSS.MS-PS4-2

How much larger will your classroom seem to appear if the entire two adjacent walls of your classroom consist of plane mirrors?

• 2x larger

• 3x larger

• 4x larger

• can't be determined

Where is the image located if an object is 30 cm in front of convex mirror with a focal length of 20 cm?

• between F and V

• between C and F

• in front of the mirror

• can't be determined

What is the distance of your image from you if you stand 1.5 m in front of a plane mirror?

• 1.5 m

• 2.0 m

• 3.0 m

• 4.5 m

Zed stands 1.5-m tall in front of a plane mirror. What is the height of his image?

• 4.5 m

• 3.0 m

• 2.0 m

• 1.5 m

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

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 mirror

• 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