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प्रश्न
Which of the following correctly represents the Lens Maker's Formula?
पर्याय
\[\frac{n_1}{OB}+\frac{n_2}{BI_1}=\frac{n_2-n_1}{BC_1}\]
\[\frac{1}{v}-\frac{1}{u}=\frac{1}{f}\]
\[\frac{1}{f}=(\mu-1)\left(\frac{1}{R_1}-\frac{1}{R_2}\right)\]
\[m=\frac{h_i}{h_o}=\frac{v}{u}\]
MCQ
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उत्तर
The Lens Maker's Formula is \[\frac{1}{f}=(\mu-1)\left(\frac{1}{R_1}-\frac{1}{R_2}\right)\], where f is the focal length, \[\mu\] is the refractive index of the lens material with respect to air, and \[R_1\] and \[R_2\] are the radii of curvature of the first and second surfaces respectively.
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