A plano convex lens of refractive index µ1 and focal length f1 is kept in contact with another plano concave lens of refractive index µ2 and focal length f2 . If the radius of curvature of their spherical faces is R each and f1 = 2f2 , then µ1 and µ2 are related as - VgyanHub

Question:

A plano convex lens of refractive index µ₁ and focal length f₁ is kept in contact with another plano concave lens of refractive index µ₂ and focal length f₂ . If the radius of curvature of their spherical faces is R each and f₁ = 2f₂ , then µ₁ and µ₂ are related as

Options :

(a) 2µ1-µ2=1
(b) µ1+µ2=3
(c) 3µ2-2µ1=1
(d) 2µ2-µ1=1

Answer :

(a) 2µ₁-µ₂=1

Answer Steps :

step 1

step 2

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