MCQOPTIONS
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MCQOPTIONS
| 1. |
The graph shows how the magnification m produced by a thin lens varies with image distance v. What is the focal length of the lens used? |
| A. | \(\frac{{{{\rm{b}}^2}}}{{{\rm{ac}}}}\) |
| B. | \(\frac{{{{\rm{b}}^2}{\rm{c}}}}{{\rm{a}}}\) |
| C. | \(\frac{{\rm{a}}}{{\rm{c}}}\) |
| D. | \(\frac{{\rm{b}}}{{\rm{c}}}\) |
| Answer» E. | |