A spectrometer is used to find:
Correct answer: D. All of these
- A. Refractive index
- B. Angle of deviation of prism
- C. Wavelength
- D. All of these
Explanation
A spectrometer can be used to measure the wavelength of light, the refractive index of a prism, and the wavelengths of different colours - hence all of the above.
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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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