PHYSICS PRESENTATION

GİZEM SENA DÜNDAR

ÖZNUR HANCI

MUHAMMED DOĞAN

REFLECTION OF LIGHT A ray of light is reflected on a plane

mirror.

mirror

This is an example of reflection of light.

REFLECTION OF LIGHT The incoming ray is the incident ray. The outgoing ray is the reflected ray. The line at right-angles to the mirror’s

surface is called a normal. The mirror in this case is a plane mirror.

2 LAWS OF REFLECTION

reflected rayincident ray

normal

mirror

angle of incidence

angle of reflection

LAWS OF REFLECTION The incident ray, the reflected ray and

the normal all lie in the same plane.

normal

incident ray reflected ray

mirror

normal

incident ray reflected ray

mirror

LAWS OF REFLECTION angle of incidence = angle of reflection

normal

incident ray reflected ray

mirror

HOW A PLANE MIRROR FORMS AN IMAGE

• Rays from object O become divergent after reflection.

mirror

O

HOW A PLANE MIRROR FORMS AN IMAGE

• I is a virtual image.

Reflected rays appear to come from I behind the mirror.

mirror

O I

HOW A PLANE MIRROR FORMS AN IMAGE Properties of the image formed by a

plane mirror

3 virtual

1 behind the mirror

2 of same size as the object

4 laterally inverted

mirror

object

Fimage

QUESTION1

The angle between the incident ray and the _______ is called the angle of incidence.normal

The laws of reflection state that it is equal to the angle of ___________.reflection

QUESTION 2The angle between an incident ray and the mirror is 20.

The angles of incidence and reflection are ____ and ____.

70

70

20

70 70

THE END Thanks for listening