As shown in figure, a liquid of refractive index ‘
2’ is poured onto the concave surface of concave – convex lens. R1 and R2 are the radii of curvature of convex and concave surfaces of the lens respectively and R1 = 2R2. The refractive index of material of lens is 
1. For which combination of 
1 and 
2, the whole system behalves as a diverging lens.
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(a)
1 = 1.2 and 
2 = 1.8
(b)
1 = 1.63 and 
2 = 1.35
(c)
1 = 1.56 and 
2 = 1.33
(d)
1 = 1.7 and 
2 = 1.33
As shown in figure, a liquid of refractive index ‘2’ is poured onto the concave surface of concave – convex lens. R1 and R2 are the radii of curvature of convex and concave surfaces of the lens respectively and R1 = 2R2. The refractive index of material of lens is 1. For which combination of 1 and 2, the whole system behalves as a diverging lens.
(a)
1 = 1.2 and 2 = 1.8
(b)
1 = 1.63 and 2 = 1.35
(c)
1 = 1.56 and 2 = 1.33
(d)
1 = 1.7 and 2 = 1.33
Question ID - 102224 | SaraNextGen Top Answer
As shown in figure, a liquid of refractive index ‘2’ is poured onto the concave surface of concave – convex lens. R1 and R2 are the radii of curvature of convex and concave surfaces of the lens respectively and R1 = 2R2. The refractive index of material of lens is 1. For which combination of 1 and 2, the whole system behalves as a diverging lens.
(a)
1 = 1.2 and 2 = 1.8
(b)
1 = 1.63 and 2 = 1.35
(c)
1 = 1.56 and 2 = 1.33
(d)
1 = 1.7 and 2 = 1.33
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