For all practical purposes we consider that light travels in _:
Correct answer: B. Straight lines
- A. Curved lines
- B. Straight lines
- C. Sometimes curved and sometimes in straight line
- D. None of these
Explanation
Light waves never travel in curved lines. If they travel in curved lines , then they would not cast shadows of objects placed in their paths. Light waves always travel in straight lines, that is why they cast shadows of objects placed in their paths .
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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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