Science, asked by PatelVishakha, 1 year ago

state cartesian sign

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Answered by nikolatesla2

The Cartesian sign convention. Let us take as an example an object 10 cm to the left of a converging lens of focal length 5 cm. In this case the object distance is l (lower case L) and is negative, as it is to the left of the "origin" of the axes. The focal length of the lens is positive.

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