The electrical signals change into light signals for transmission through optical fibre. A light pulse represents:
Correct answer: C. Both zero (0) and one (1)
- A. Zero (0):
- B. One (1):
- C. Both zero (0) and one (1)
- D. Either zero (0) or one (1):
Explanation
Explanation: In optical communication, a light pulse can represent both binary states: zero (0) and one (1). The presence or absence of light pulses corresponds to the binary code.
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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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