Geometrical OpticsHard
Question
The figure shown a ray incident on a plane boundary at an angle i = π/3.The plot drawn shows the variation of | r - i | versus 
= k (r = angle of refraction). Choose the correct alternative.
= k (r = angle of refraction). Choose the correct alternative.Options
A.The value of k1 is 
B.The value of θ1 is π/6
C.The value of θ2 is π/3
D.The value of k0 is 1
Solution
δ = 0 at K0 ⇒ K0 =
= 1θ2 = ? ; K =
; μ1 : denser ; K : increaser = 0, δ =
- 0, ⇒ θ2 = 
θ1 = ? K =
↓μ2 : denser ; : rarer ;K : decreases
μ2 sin i = μ1
sin
= K1 At k1, r =
; so θ1 = 
- 
= 
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