Spherical mirror concept
Classical Mechanics
Level
2
Which of the following cannot be true of an image formed by a mirror of focal length
The image is upright
The image is virtual
The image is behind the mirror
The image is larger than the object
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1 solution
Consider the lens equation.
p 1 + q 1 = f 1
Rearrange for q.
q = p f p − f
For a negative f , ∣ q ∣ ≤ p always, so the image may never be larger.