TS EAMCET · Physics · Ray Optics
The refractive index of the material of a double convex lens is 1.5 and its focal length is \(5 \mathrm{~cm}\). If the radii of curvature are equal, the value of the radius of curvature (in \(\mathrm{cm}\) ) is
- A \(5.0\)
- B \(6.5\)
- C \(8.0\)
- D \(9.5\)
Answer & Solution
Correct Answer
(A) \(5.0\)
Step-by-step Solution
Detailed explanation
\(\frac{1}{f}=(\mu-1)\left(\frac{1}{R_1}-\frac{1}{R_2}\right)\) For double convex lens, \(R_1=R, R_2=-R\)…
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