TS EAMCET · Physics · Ray Optics
A thin convex lens of focal length \(f\) made of crown glass is immersed in a liquid of refractive index \(\mu_I\left(\mu_I>\mu_c\right)\), where \(\mu_c\) is the refractive index of the crown glass. The convex lens now is
- A a convex lens of longer focal length
- B a convex lens of shorter focal length
- C a divergent lens
- D a convex lens of focal length \(\left(\mu_c-\mu_1\right\} f\)
Answer & Solution
Correct Answer
(C) a divergent lens
Step-by-step Solution
Detailed explanation
When the convex lens of focal length \(f\) made of crown glass immersed in liquid of refractive index \(\mu_f\left(\mu_l>\mu_c\right)\), here \(\mu_c\) is the refractive index of crown glass, thus from lens maker's formula, we will get focal length of the lens as negative…
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