370 



REFLECTION. 



A. The line of the ANGLE OF INCI- 

 DENCE. 



Q. When a marble REBOUNDS back again, 

 what is the path it THEN describes called ? 



A. The line of the ANGLE OF REFLEC- 

 TION. 



Q. W lien the light of our face goes TO the 

 GLASS, what is the path through which it goes 



CALLED ? 



A. The line of the angle of incidence. 



Q. When the light of our face is reflected BACK 

 again from the mirror, what is this EETURNING path 

 called ? 



A. The line of the angle of reflection. 



Q. Why does our reflection in a mirror seem 

 to APPEOACH us as we walk TOWARDS it, and to 

 RETIRE FROM us as WE retire? 



A. Because the line of the angle of 

 incidence is always equal to the line and 

 angle of reflection. 



! 



C~ H 



Here C A, E A and D B, F B are the lines of the 



