The range of wavelength of visible light is _.
Correct answer: D. 4000 Å - 7000 Å
- A. 700 Å - 1000 Å
- B. 1 nm - 100 nm
- C. 0.1n m - 1 nm
- D. 4000 Å - 7000 Å
Explanation
Visible light has a wavelength ranging between 400 nm to 700 nm. 1 nm has 10 Å. Therefore, the range can be written as 4000 Å to 7000 Å.
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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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