Spectrum is produced due to________________?
Correct answer: A. Different wavelength
- A. Different wavelength
- B. Different colours
- C. Different intensities
- D. all have little contribution
Explanation
A spectrum is produced when radiation is separated according to wavelength, producing distinct wavelengths or corresponding frequencies. Different colours are visual effects of different wavelengths, while intensity mainly affects brightness. Students may choose b because colours are visible in many spectra, but wavelength is the physical basis of their separation.
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About Spectrum of Hydrogen
The hydrogen spectrum consists of discrete emission lines produced when electrons fall between quantised energy levels and release photons. Questions use the Rydberg equation, photon energy and wavelength, and identify the Lyman, Balmer, Paschen, Brackett and Pfund series, which differ from continuous spectra.
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