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A spectroscope is a fundamental optical instrument in physics and chemistry used for studying light properties. It works on the principle of dispersion, where light is separated into its constituent colors or wavelengths using a prism or diffraction grating.
A slit allows light to enter the instrument.
A prism or diffraction grating disperses the light into its spectral components.
A telescope or viewing lens magnifies the spectrum so it can be observed or recorded.
Astronomy: Studying the spectra of stars and galaxies to determine their composition and motion.
Chemistry: Identifying elements in a sample by analyzing their emission or absorption spectra.
Physics Education: Demonstrating light dispersion and wavelength measurements.
Industrial Applications: Checking the purity of light sources or analyzing emission lines.
Microscope: Magnifies very small objects, does not measure light properties.
Telescope: Used to observe distant objects, primarily in astronomy.
Oscilloscope: Displays electrical signals as waveforms, unrelated to light.
Separates light into its spectrum
Measures wavelengths, intensity, and composition
Can be manual or digital, depending on precision needs
Spectroscope = optical instrument for measuring light properties
Principle = dispersion of light into spectrum
Applications: astronomy, chemistry, physics experiments, industrial analysis
Not to be confused with microscope, telescope, or oscilloscope
👉 Correct Answer: Option 3 – Spectroscope
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