.

1. Does the light reflected from
our face reach our eyes?
What method do we use to see our own
face?

2. Examine the surface of a mirror
we use.
What are the peculiarities of its
surface?

3. A mirror with a plane surface is called a
plane mirror.

4. How does the face appear if we look on
a steel plate or an aluminium
plate instead of a mirror?

5. Activity
Look at the new steel plate, old steel plate and aluminium plate.
Lack of smoothness in the old plate is
the reason for not seeing the face clearly.

6. Smooth surface reflects the
light well.

7. Experiment :
Conducts the experiment
directs the light towards the mirror from
the torch, such as the reflection falls on
the wall.
Repeat the activity by directing light on
to the mirror from different directions.

8. The ray falling on the mirror is
called Incident ray and the ray
reflected from it is the Reflected
ray.
The line drawn perpendicular
to the mirror at the point of incidence
is called the Normal.

9. The angle between the incident ray
and the normal is the Angle of incidence
and the angle between the reflected ray and
the normal is the Angle of reflection.