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Chromatic Aberrations

The focal len...

Question

The focal length of a lens is 50 cm. Calculate the power of that lens. Write the type of this lens.

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Solution

Given,

Focal length, $f = 50 c m$

Power, $P = \frac{100}{f}$

$= \frac{100}{50}$

$P = 2 D$

Since, focal length in +ve lens is convex.

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