alleryRefraction by a prism: deviation δ depends on:
AColor
BAngle of incidence, prism angle, refractive index
CWidth
DMass
Answer & Solution
Correct answer: B. Angle of incidence, prism angle, refractive index
δ depends on i, prism angle A, and n.
**At minimum deviation:** i₁ = i₂ and δ_min satisfies n = sin((A+δ_min)/2)/sin(A/2).
Different colors deviate differently (dispersion).
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