REFLECTION OF LIGHT

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P (Point of Incidence)

A (Source)

B (Reflected Path)

C (Straight Path)

N (Normal Line)

Incident Ray (AP)i (∠APN) = 60.0°

Reflected Ray (PB)r (∠NPB) = 60.0°

Glancing Angle (α)α = 30.0°

Deviation Angle (δ)δ (∠BPC) = 60.0°

Angle of Incidence (i = ∠APN) 60°

Ray Length 22 cm

REFLECTION OBSERVATIONS

Incident Angle (i = ∠APN)
60.0°

Reflected Angle (r = ∠NPB)
60.0°

Glancing Angle (α)
30.0°

Deviation Angle (δ = ∠BPC)
60.0°

Reflection Law & Proof

Law: i (∠APN) = r (∠NPB) = 60.0°

Glancing: α = 90° - ∠APN (60.0°) = 30.0°

Deviation: δ (∠BPC) = 180° - 2(∠APN) (60.0°) = 60.0°

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