Which one of the following is nearly monochromatic light?
Correct answer: A. light from sodium lamp
- A. light from sodium lamp
- B. light from mercury lamp
- C. light from sodium fluorescent tube
- D. light from a simple lamp
Explanation
Explanation: Nearly monochromatic light refers to light that consists of a very narrow range of wavelengths. Sodium lamps are known for producing nearly monochromatic light with a dominant yellow-orange wavelength.
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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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