A concave mirror is used as a shaving or make up mirror because when the face is closer than the focal length it forms an image that is
- A. real and inverted
- B. virtual, upright and magnified
- C. virtual and diminished
- D. real and diminished
Explanation
Inside the focal length the reflected rays diverge, so they appear to come from an enlarged upright image behind the mirror. Beyond the focal length the same mirror gives a real inverted image, which is how a reflecting telescope forms its image. A convex mirror always gives a diminished upright virtual image, which is why it is used for wide angle car mirrors.
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