A plano convex lens of refractive index \mu_1 and focal length f_1 is kept in contact with another plano concave lens of refractive index \mu_2 and focal length f_2. If the radius of curvature of their spherical faces is R each and f_1 = 2f_2, then \mu_1 and \mu_2 are related as : [10 Jan 2019 Shift 1]

Correct Answer is : 2μ1–μ2 = 1

JEE Main 10 Jan 2019 Shift 1 Solved Paper

Section: Physics

Question : 26 of 90

Marks: +1, -0

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 :

[10 Jan 2019 Shift 1]

μ1+μ2 = 3
2μ1–μ2 = 1
2μ2–μ1 = 1
3μ2–2μ1 = 1

Validate

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