Refraction of Light
ICSE · Class 10 · Physics
All formulas from Refraction of Light in ICSE Class 10 Physics. Key equations, constants, and identities for board exam preparation.
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Refraction Basics
ₐnᵍ = sin i / sin r
n = c / v
₁n₂ × ₂n₁ = 1
wnᵍ = ₐnᵍ / ₐnw
Refraction Through a Glass Slab
Lateral displacement = t · sec r · sin(i − r)
Refraction Through a Prism
δ = i₁ + i₂ − A
A = r₁ + r₂
μ = sin[(A + δmin)/2] / sin(A/2)
δ = (n − 1)A [for small angle prisms]
Real and Apparent Depth
n = Real Depth / Apparent Depth
Apparent Shift = Real Depth × (1 − 1/n)
Total Apparent Depth = d₁/n₁ + d₂/n₂ + d₃/n₃
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