2. Aim
❖ At the end of class we will be able to understand the
second law of reflection and activity verify it
❖ To understand the types of reflection
❖ To understand the characteristics of images formed
by plane mirror
❖ To understand the different type of images
3. CERTIFICATE
This is to certify that Group 5 : Nishika Chauhan,
Parisha Murgai , Priya Garodia , Rudransh Sharma ,
Ryan Narula and Sanskriti karn of VIII B have
successfully completed the group project of science
under guidance of Ms. Anjali Chauhan with full
originality during the academic year of 2021 as prescribed
by CBSE.
4. Acknowledgement
● We would like to thank our Science teacher Ms. Anjali Chauhan whose
valuable guidance helped us to complete this project and make it
successful . Her instructions and support has played an important role
towards the completion of the project .
● Then we would like to thank our parents and group members who helped
us with their valuable suggestions and support
6. Priya Introduction
Sanskriti Second law of reflection
Parisha virtual images
Nishika real images
Ryan regular reflection
Rudransh irregular reflection
7. The incident ray, the reflected ray and the normal to the surface of
the mirror all lie in the same plane. The angle of incidence is equal
to the angle of reflection.
SECOND LAW OF REFLECTION
11. THERE ARE TWO TYPE OF REFLECTION
REGULAR REFLECTION DIFFUSED REFLECTION
12.
13. Regular Reflection
➢ Light rays are parallel to each other .
➢ When the parallel light rays reflect from a surface and the reflection
of the light rays are also parallel then they are known as regular
reflection .
➢ The mirror in our house reflects the same image as shown in front of
it because of the reflection of parallel light rays in a regular manner .
17. Diffuse Reflection
• When parallel rays after reflection from a surface are not parallel, then it is called
irregular reflection.
• Irregular reflection is also called diffused reflection.
• When the light rays hit an irregular surface like cardboard, ground, water waves etc,
they scatter.
• A person cannot see his/her image in a old steel plate. It is because the
surface of the plate becomes rough because of usage and scribbling
but the person can see his/her face in a brand new plate because of
regular reflection.
22. What is an image?
● An image may be defined as that point, where the light rays coming from
a luminous object appears to meet after reflection.
23. CHARACTERISTICS OF IMAGE
FORMED BY PLANE MIRROR
● The image is erect.
● It is of same size as of object .
● It is formed at the same distance behind the mirror as
the object is in front of it .
● The image i virtual , it cannot be obtained on screen .
● The image is laterally inverted , the left of the object
appears to be the right and right appears on left .
25. VIRTUAL IMAGE
★ An image that can not be obtained on screen is termed as virtual
image.
★ It is formed when the light rays coming
from an object do not actually meet.
★ Virtual images are always erect
image such as an image formed in a
mirror.
26. ★ A real image is formed when
light rays coming from an
object actually meet each
other after reflection.
★ A real image can be obtained
on screen .
Real images
27. The real image is always inverted . The
common example of real Image which is
formed on Cinema screen
