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  • Select a graph for concave mirror between and <img alt="1 / u" src="https://entrancecorner.oncodecogs.com/gif.lat

Select a graph for concave mirror between 1 / v and 1 / u.

Option: 1


Option: 2


Option: 3


Option: 4


Answers (1)

best_answer

For a mirror
\frac{1}{\mathrm{u}}+\frac{1}{\mathrm{v}}=\frac{1}{\mathrm{f}}

Let {\mathrm{y=\frac{1}{v}, x=\frac{1}{u}}

\mathrm{\therefore \quad x+y=\frac{1}{f}, \quad y=-x+1 / f}
This is the equation of a straight line with slope \mathrm{=(-1)}  and intercept \mathrm{=\frac{1}{f}} Hence the graph would be

 

Posted by

HARSH KANKARIA

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