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  • A spherical convex surface separates object and image space of refractive index 1 and respectively. If radius of

A spherical convex surface separates object and image space of refractive index 1 and 4 / 3 respectively. If radius of curvature of the surface is 0.1 \mathrm{~m}, its power is :

Option: 1

2.5 \mathrm{D}


Option: 2

-2.5 \mathrm{D}


Option: 3

3.3 \mathrm{D}


Option: 4

-3.3 \mathrm{D}


Answers (1)

best_answer

For a single spherical surface

\frac{\mu_{2}}{\mathrm{f}} =\frac{\mu_{2}-\mu_{1}}{\mathrm{R}}
\Rightarrow \mathrm{P}=\frac{\mu_{2}-\mu_{1}}{\mu_{2} R}

putting the values, P=2.5 \mathrm{D}.

Posted by

manish painkra

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