WELCOME!

                                  WELCOME TO OUR 8TH GRADE SCIENCE
                                                               WEBSITE.


 HERE WE ARE GOING TO READ SOME CHAPTERS OF CLASS 8TH THAT WILL BE USEFUL FOR YOU. TODAY OUR FIRST TOPIC WILL BE:-        

                                                          REFLECTION

                                                                   OF

                                                                LIGHT   

WHAT IS REFLECTION OF LIGHT ?

REFLECTION MEANS THE BOUNCING OF LIGHT FROM A SURFACE. A MIRROR REFLECTS ALMOST ALL THE LIGHT FALLING ON IT. REFLECTION OF LIGHT CAN BE COMPARED TO THE BOUNCING OF A BALL.

THIS IS REFLECTION OF LIGHT

REFLECTION OF LIGHT ON A PLANE MIRROR

  

A PLANE POLISHED SURFACE CAPABLE OF REGULARLY REFLECTING ALMOST ALL THE LIGHT FALLING ON ITS OWN IT IS KNOWN AS A PLANE MIRROR.

• A RAY OF LIGHT WHICH FALLS ON THE MIRROR IS CALLED THE INCIDENT RAY.
• THE RAY WHICH IS SENT BACK TO THE ORIGINAL MEDIUM IS CALLED THE REFLECTED RAY.
• THE PERPENDICULAR TO THE REFLECTING SURFACE AT THE POINT OF INCIDENCE IS CALLED NORMAL.
• THE ANGLE MADE BY THE INCIDENT RAY WITH THE NORMAL AT THE POINT OF INCIDENCE IS CALLED THE ANGLE OF INCIDENCE.
• THE  ANGLE MADE BY THE REFLECTED RAY WITH THE NORMAL AT THE POINT OF REFLECTION IS CALLED THE ANGLE OF REFLECTION.