Optics

Question 1

The study of mirrors and lenses belongs to the branch of science called _____

Answer 1

geometric optics.

Question 2

____ is a highly polished surface that is usually made of glass coated on one surface with silver or aluminum,

Answer 2

mirror

Question 3

Mirrors can comes in the forms of: ____ or ____

Answer 3

flat or curved

Question 4

____ is the bouncing of light when it hits a barrier of a boundary of another medium,

Answer 4

Reflection

Question 5

the angle between the incident ray and the normal is called the _____

Answer 5

angle of incidence

Question 6

They are light-reflecting objects, they reflect light rays in an orderly pattern.

Answer 6

specular reflection

Question 7

This is parallel rays striking a rough surface, such as a wood or a rock, the reflected rays are scattered.

Answer 7

diffuse reflection

Question 8

Types of Image? (2)

Answer 8

Real and Virtual

Question 9

This image is formed by actual or “real” rays of light

Answer 9

Alam mo na to. (Real)

Question 10

Is an image created by apparent rays of light, or light rays that seem to converge or meet at one point.

Answer 10

virtual image. Wow namali mo pa.

Question 11

two kinds of spherical mirrors:

Answer 11

Concave and Convex

Question 12

The reflecting surface is curved inward.

Answer 12

Concave

Question 13

The reflecting surface is curved outward.

Answer 13

Convex

Question 14

This is curved pieces of glass or any other transparent material. This can also bend light rays.

Answer 14

Lenses

Question 15

The bending of light is called ____

Answer 15

refraction

Question 16

Enumerate optical instruments: (5)

Answer 16

magnifying glasses, cameras, microscopes, telescopes, and the human eye

Question 17

____ is an optical instrument that resembles the human eye in several aspects.

Answer 17

A camera

Question 18

This consists of a convex lens. To magnify an object, the lens is placed very close to it. As you learned previously, a convex lens produces an enlarged image of an object if it is placed between the focus and the lens

Answer 18

A magnifying glass

Question 19

A _____ magnifies minute objects multiple times to make them visible to the human eye.

Answer 19

microscope

Question 20

____ makes distant objects appear closer and bigger

Answer 20

telescope

Question 21

What kind of lens does the human eye have?

a. concave

b. convex

C. can be both concave and convex, depending on the incident light

d. neither concave nor convex

Answer 21

B. Convex

Question 22

A white sheet of paper will not act as a mirror because it. rays of light.

a. diffracts

C. interferes

b. diffuses

d. refracts

Answer 22

B. Diffuses

Question 23

What kind of mirror is used in automobiles to allow drivers to see a wider area and a smaller image of the traffic behind them?

A. concave mirror

C. plane mirror

b convex mirror

d. regular mirror

Answer 23

B. Convex

Question 24

The image formed by a plane mirror is always.

a. upright and laterally inversed

b. inverted and laterally inversed

C. upright but not laterally inversed

d. inverted but not laterally inversed

Answer 24

C. upright but not laterally inversed

Question 25

When light rays parallel to the principal axis of a concave mirror are reflected, they pass through a. the principal focus b. the center of curvature C. any point on the axis between the principal focus and the mirror d. any point on the axis between the center of curvature and the principal focus

Answer 25

a. the principal focus

Question 26

All of the following produces a real image, except a. a magnifying glass. B. a motion picture camera C. a pinhole camera D. the human eye

Answer 26

a. a magnifying glass.

Question 27

The image of an object is normally formed on the ____ a. Cornea b. Retina c. aqueanous humor d. virtreous humor

Answer 27

b. Retina

Question 28

Which part of the human eye has the similar function as the film of a camera? a. cornea C. iris b. eyelid d. retina

Answer 28

d. retina

Question 29

An object is located between the secondary focus and the optical center of a convex lens. The image formed is than the object. C. upright, virtual, and larger d. upright, virtual, and smaller A. inverted, real, and larger B. inverted, real, and smaller

Answer 29

C. upright, virtual, and larger

Question 30

The principle involved in the image formation in lenses is. a diffusion b. magnification C. reflection d. refraction

Answer 30

d. refraction