The light signal must be regenerated by:
Correct answer: C. Repeaters
- A. Transmitters
- B. Receivers
- C. Repeaters
- D. All
Explanation
The correct option is C because In communication systems, light signals can weaken or degrade over long distances. Repeaters are used to regenerate and amplify these signals to maintain their strength and integrity along the transmission path.
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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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