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A concave mirror is used as a shaving mirror because, when the face is held within its focal length, it produces an image that is:
Answer & Solution
Correct answer: B.
1. When the object lies between P and F of a concave mirror, the image forms behind the mirror.
2. This image is virtual, erect and enlarged compared to the object.
3. That magnification is what a shaver wants for a closer look.
_Source: NCERT Class 10 Science, Ch 9 "Light Reflection and Refraction", §9.2.1_
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