magnification produced by shaving mirror is
a) greater than 1
b) less than 1
c) depends on the position of object
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Answer : Magnification produced by shaving mirror is a) greater than 1.
Explanation:
- Concave mirrors are used as shaving mirrors because when the face is placed close to a concave mirror (within the focus of the mirror) it produces a magnified and erect image of the face. Since an enlarged or magnified image of the face can be seen in the concave mirror, it becomes easier to make a smooth shave.
- A magnification of 1 (plus or minus) means that the image is the same size as the object. If m has a magnitude greater than 1 the image is larger than the object, and an m with a magnitude less than 1 means the image is smaller than the object. As image is larger in shaving mirror, then the magnification is greater than 1.
Hence, Magnification produced by shaving mirror is a) greater than 1.
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