Physics · Ray Optics
Raghu measures the image distance (v) corresponding to different object distances (u) in front of a concave mirror of focal length f. If he plots a graph of magnification m with respect to v (taking v along the horizontal axis), which of the following statements describes the graph correctly?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1It is a straight line with slope -1/f, with -1 as the x-intercept and +f as the y-intercept.
- 2It is a straight line with slope +f, with -1 as the x-intercept and 1/f as the y-intercept.
- 3It is a straight line with slope +1/f, where +f is the horizontal axis intercept and -1 is the vertical axis intercept.✓
- 4It is a straight line whose slope is -f, with -1 as the x-intercept and -f as the y-intercept.
Correct answer
It is a straight line with slope +1/f, where +f is the horizontal axis intercept and -1 is the vertical axis intercept.
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