The document discusses the law of reflection. It defines key terms like the normal, incident ray, reflected ray, angle of incidence, angle of reflection, and point of incidence. The law of reflection states that 1) the angle of incidence equals the angle of reflection, and 2) the incident ray, normal, and reflected ray all lie in the same plane at the point of reflection on the surface.

1. TOPIC: LLAAWW OOFF RREEFFLLEECCTTIIOONN
SUBMITTED BY
SHELIN K BYSHI
PHYSICALSCIENCE

2. LAW OF
REFLECTION

3. NORMAL
THE PERPENDICULAR DRAWN AT THE
POINT OF INCIDENCE TO THE
REFLECTING SURFACE IS CALLED
NORMAL.

4. NORMAL
NORMAL
REFLECTING SURFACE

5. INCIDENT RAY OF LIGHT
THE RAY OF LIGHT THAT FALLS ON A
SURFACE IS CALLED INCIDENT RAY
OF LIGHT.

6. INCIDENT RAY
NORMAL
REFLECTING SURFACE

7. REFLECTED RAYOF LIGHT
THE RAY OF LIGHT THAT IS
REFLECTED FROM A SURFACE IS
CALLED REFLECTED RAY OF LIGHT.

8. REFLECTED RAY OF LIGHT
NORMAL
REFLECTING SURFACE

9. • ANGLE OF INCIDENCE:
THE ANGLE BETWEEN THE INCIDENT
RAY AND THE NORMAL IS CALLED AN
ANGLE OF INCIDENT.
ANGLE OF REFLECTION
THE ANGLE BETWEEN THE REFLECTED
RAY AND THE NORMAL IS CALLED AN
ANGLE OF REFLECTION.
• POINT OF INCIDENCE
THE POINT AT WHICH LIGHT FALLS.

10. ANGLE OF INCIDENCE&ANGLE OF
REFLECTION
REFLECTING SURFACE

11. LAW OF REFLECTION-1
The angle of incidence equals
to the angle of reflection.

12. ANGLE OF INCIDENCE = ANGLE OF
REFLECTION
i=r

13. LAW OF REFLECTION-2
THE INCIDENT RAY, REFRACTED RAY
AND THE NORMAL TO THE REFLECTING
SURFACE AT THE POINT OF INCIDENCE
LIE ON THE SAME PLANE.

14. LAW OF REFLECTION-2
Incident ray
Normal
Reflected ray
Angle of
incidence
Angle of
reflection
REFLECTING SURFACE