Light refraction

Question 1

What is a plane mirror?

Answer 1

A plane mirror is a mirror with a flat reflective surface. For light rays striking a plane mirror, the angle of reflection equals the angle of incidence.

Question 2

What is a convex mirror and what type of images does it produce?

Answer 2

convex mirror is bulging outwards and it produces virtual images

Question 3

what is a concave mirror and what type of images does it produce

Answer 3

a mirror that curves inward and can produce real or virtual images depending on the distance of the object from the mirror

Question 4

Convex lense?

Answer 4

can produce real or virtual images

Question 5

Concave lense?

Answer 5

can only produce virtual images

Question 6

what is a principal axis?

Answer 6

straight line going through the center of the mirror or lense

Question 7

what is a principal focus?

Answer 7

the point where all the light rays converge

Question 8

focal length?

Answer 8

distance from the principal focus to the center of the lense. The longer the focal length, the narrower the angle of view and the higher the magnification. The shorter the focal length, the wider the angle of view and the lower the magnification.

Question 9

a concave mirror with an object close to it is ( virtual ) and ( )

Answer 9

upright

Question 10

specular reflection?

Answer 10

reflection of light off a smooth or shiny surface at a definite angle

Question 11

a concave mirror with an object farther away is ( ) and ( )

Answer 11

real inverted

Question 12

diffuse reflection?

Answer 12

rough surfaces that tend to refrract light in different directions

Question 13

point of incidence

Answer 13

the spot where the light has struck the reflecting surface

Question 14

a convex mirror is always

Answer 14

upright and virtual

Question 15

why does light bend when it enters objects?

Answer 15

When light travels from air into water, it slows down, causing it to change direction slightly.

Question 16

definetion of refraction?

Answer 16

The passing and change of direction of a wave from one medium to another

Question 17

reflected ray?

Answer 17

a ray of ligt that bounces of a relfecting surface

Question 18

incident ray?

Answer 18

the ray of light that travels towrds a reflecting surface

Question 19

angle of incidence

Answer 19

angle bewteen the inceident ray and normal

Question 20

angle of reflection

Answer 20

angle between the reflected ray nd the normal

Question 21

what is the normal?

Answer 21

the line drawn at 90 degrees from the point of incidence to the optical device

Question 22

three example of concave lenses?

Answer 22

lasers, flaslight, telescopes (both)

Question 23

examples pf diffuse reflection?

Answer 23

paper, bicycle reflectors, clothing

Question 24

examples of specular reflection

Answer 24

waters surface, mirror, glare from eye glasses