2nd Periodic Exam Reviewer (MIRRORS AND LENS)

Question 1

Bouncing off of light rays

Answer 1

Reflection

Question 2

Ray of light approaching the mirror

Answer 2

Incident ray

Question 3

Ray of light which leaves the mirror

Answer 3

Reflected Ray

Question 4

An imaginary line perpendicular to the surface of the mirror

Answer 4

Normal Line

Question 5

It states that the angle of incidence is equals to the angle of reflection.

Answer 5

Law of Reflection

Question 6

The left side of the object appears as the right side of the image and vice versa.

Answer 6

Mirror Left-Right Reversal

Question 7

Images in PLANE MIRROR

Answer 7

L - behind the mirror
O - always upright
S - always same size
T - always Virtual

Always same distance of the object

Question 8

Called as CONVERGING MIRROR because the parallel incident rays converge/meet at the focal point.

Answer 8

Concave Mirror

Question 9

Called as DIVERGING MIRROR because the parallel rays diverge after reflection.

Answer 9

Convex Mirror

Question 10

The image formed in a CONVEX MIRROR is

Answer 10

Always formed upright/erect, reduced, and virtual.

Question 11

They are used in side mirrors up among automobiles and department stores.

Answer 11

Convex Mirror

Question 12

The four principal rays:

Answer 12

P-F RAYS
F-P RAYS
C-C RAYS
V RAY

Question 13

It is the bending of light when it travels form one medium to another of different optical densities.

Answer 13

Refraction

Question 14

It is thicker in the center than edges.

Answer 14

Convex Lens

Question 15

Called as CONVERGING LENS as lights bend to a point beyond the lens on the axis.

Answer 15

Convex Lens

Question 16

It is thicker at the edges and thinner at the center

Answer 16

Concave Lens

Question 17

Called as DIVERGING LENS

Answer 17

Concave Lens

Question 18

Image of Concave Lens forms ___________.

Answer 18

Always Upright
Always Reduced
Virtual Images

Question 19

Where should an object be placed in front of a concave mirror so that the image will have same size as the object

Answer 19

At the center of curvature (c)

Question 20

An object is placed in front of a converging lens at a distance less than F. The image image produced by the lens is _________.

Answer 20

Virtual
Upright
Enlarged

Question 21

When a small object is placed on the principal axis of a concave mirror between the focus and a mirror

Answer 21

Erect, Magnified, Virtual

Question 22

Which of the following are the characteristics of the image formed in the eyepiece of a microscope?

Answer 22

Virtual and Enlarged

Question 23

An object is place in front of a converging lens at a distance between F and 2F. The image produced by the lens is __________.

Answer 23

Real, Inverted, Enlarged

Question 24

What is the similarity between microscopes and refracting telescope?

Answer 24

They produce magnified image of distant objects.

Question 25

An object is placed **in front of a diverging lens at a distance between F and 2F.** The image produced by the lens is __________.

Answer 25

Virtual, Upright, Reduced

Question 26

In concave mirror, size of the object depends upon

Answer 26

Position of object

Question 27

What kind of lens here it is **THINNER in the middle than at the edge?**

Answer 27

Concave Lens

Question 28

If the size of the image formed by a converging lens is the same as the object, the object distance is __________.

Answer 28

Equal to the image distance

Question 29

Which device magnifies images of minute (very small) things, otherwise invisible to the **naked eye?**

Answer 29

Optical Microscope

Question 30

If you look down on a pool of **wavy water**, you can’t see your face clearly. Why?

Answer 30

Irregular Reflection of light happens on the surface of wavy water

Question 31

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

Answer 31

8:30

Question 32

Which phenomenon of light explains the formation of image by a lens?

Answer 32

Refraction

Question 33

For a concave mirror, focus is _________.

Answer 33

Real

Question 34

A mirror whose inner curved surface is **reflecting** is

Answer 34

Concave Mirror

Question 35

For a convex mirror focus is

Answer 35

Virtual

Question 36

A girl wants to see an enlarged image of her face. What can serve her purpose well?

Answer 36

Concave Mirror

Question 37

The characteristics of the final image formed by a compound microscope is

Answer 37

Virtual, Inverted, and Enlarged