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Nilanjan Bhowmick AIR 3, CSIR NET (Earth Science)
Ashish Sharma posted an Question
May 31, 2020 • 17:47 pm
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29 points
29 points
- IIT JAM
- Physics (PH)
An equi-convex lens ( = 1.5) is combined with an equi concave lens (u = 1.3). the radii of (a) the combination behaves like a converging lens in medium of refra
An equi-convex lens ( = 1.5) is combined with an equi concave lens (u = 1.3). The radii of (A) The combination behaves like a converging lens in medium of refractive index 1.4 and (B) The combination behaves like a converging lens in a medium of refractive index 1.2 as (C) The combination behaves like a diverging lens in medium of refractive index 1.2 as well (D) The combination behaves like a diverging lens in medium of refractive index 1.4 and curvature of all surfaces is the same. (Assume thin lenses) diverging lens in a medium of refractive index 1.6. well as 1.4. as 1 converging lens in a medium of refractive index 1.6. 1.6.
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Ghost. Best Answer
option (b) is correct. for converging lens focal length has to be positive and negative for diverging lens. here i am attaching the solution.
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Ashish sharma
thank u sir