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Please solve this question number is 125 and 126.hurry up my friends

shivam Prajapati , 7 Years ago
Grade 12th pass
anser 1 Answers
Eshan

Last Activity: 6 Years ago

Dear student,

From refraction at curved surface relation,

\dfrac{\mu_2}{v}-\dfrac{\mu_1}{u}=\dfrac{\mu_2-\mu_1}{R}
For light ray coming from infinity, the image is formed at focus. Hence

\dfrac{4/3}{f}-\dfrac{1}{-\infty}=\dfrac{\dfrac{4}{3}-1}{0.1}
\implies \dfrac{1}{f}=2.5D

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