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Parabolic Sign Convention
Real Front Side:
Z > 0 (Front)
Virtual Back Side:
Z < 0 (Behind)
Concave Mirror:
f > 0 (Parabolic)
Convex Mirror:
f < 0 (Parabolic)
Calculations Breakdown
Mirror Equation
1/f = 1/do + 1/di
Paraboloid Surface
z = (x² + y²) / 4f
Value Substitution:
1/2.00 = 1/3.50 + 1/4.67
Object
Image
F