The function of collimeter in spectrometer is________________?
Correct answer: A. to produce parallel beams of light
- A. to produce parallel beams of light
- B. to filter the light rays
- C. to make them
- D. no function
Explanation
A collimator uses a slit and a converging lens to convert light from the slit into a parallel beam. Parallel rays are needed so that the spectrometer can accurately measure angles and spectra. The likely mistake is choosing b, because a collimator shapes the beam but does not primarily filter its wavelengths.
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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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