A___________has no size or shape, just position.
Correct answer: C. point
- A. line
- B. bottom
- C. point
- D. vertex
Explanation
A point is an ideal geometrical object representing position only, with no length, width or thickness. A line has length, and a vertex is a point where lines or edges meet, so neither is the basic term being defined. The likely mistake is choosing vertex because it is also represented by a point in diagrams.
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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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