Question

To find focal length of a Convex lens by plotting graph between u and v or between 1/u and 1 /v

Answer 1

Hello....

we know, lens maker formula,

1/v - 1/u = 1/f

where v is distance of image from the pole of lens, u is distance of object from the pole of lens and f is focal length of lens.

because, it is given that lens is convex lens

so, focal length be positive.

if we assume 1/v = y , 1/u = mx and 1/f = c

then, graph 1/v v/s 1/u is y = mx + c [ a straight line ] graph is shown in figure.

but when we want to plot graph v v/s u,

then its graph will be hyperbolic. graph is shown in 2nd figure.

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Hope it helps you

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Please mark it as the brainliest answer