In a spectrometer, the circular scale, graduated by half a degree, is attached with:
Correct answer: B. Turntable
- A. Telescope
- B. Turntable
- C. Cross wire of telescope
- D. None of these options are correct
Explanation
The turntable is the major part of the instrument. It is mounted on a robust bearing, and it can be rotated around a vertical axis. It is provided with a circular scale marked from 0 to 360 at 0.5 intervals.
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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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