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A ray of light strikes a reflective plane surface at an angle of  Y = 18° with the plane surface (Shown in the figure).
 
Find the following,
  
a. angle of incidence
b. angle of reflection
c. angle of X
 
PIC-1797.png
 
a. Angle of incidence = °
 
b. Angle of reflection = °.
 
c. Angle of X = °
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