The lens used to correct myopia (short-sightedness) is:
Correct answer: B. Concave lens
- A. Convex lens
- B. Concave lens
- C. Cylindrical lens
- D. Bifocal lens
Explanation
Myopia is corrected using a concave (diverging) lens, which spreads light rays so they focus correctly on the retina.
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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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