A concave lens of glass, refractive index 1.5, has both surfaces of same radius of…
Physics · JEE Advanced · NTA Exams — Optics
A concave lens of glass, refractive index 1.5, has both surfaces of same radius of curvature R. On immersion in a medium of refractive index 1.75 it will behave as a
- Convergent lens of focal length 3.5 R
- Convergent lens of focal length 3.0 R
- Divergent lens of focal length 3.5 R
- Divergent lens of focal length 3.0 R
Answer
(A) Convergent lens of focal length 3.5 R
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