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
Correct answer: B. virtual, upright and magnified
- 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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About Optics
Light is studied through reflection, refraction, dispersion, interference, diffraction and polarization, linking ray behavior with its wave nature. Questions may involve mirrors, lenses, optical instruments, refractive index and image formation, while geometrical optics deals with rays and wave optics explains effects such as interference and diffraction.
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