Welcome to the Quiz!
This quiz contains 11 questions from a mix of 1 subtopics.
What type of spectrum is emitted by hot objects?
line absorption spectrum
discrete spectrum
line emission spectrum
continuous spectrum
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How can a continuous spectrum be separated into its component wavelengths?
by cooling the light to absolute zero
by passing the light through a prism
by slowing down the light
by heating the light
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What is indicated when light from an excited gas passed through a prism shows a line emission spectrum?
the gas atoms have emitted photons of particular wavelengths
the photons have combined to form new colors
the gas atoms have absorbed photons of particular wavelengths
the photons have split into their component colors
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What does each emission line in the spectrum correspond to?
a forbidden electron transition
a wavelength of infrared light emitted
the ground state electron transition
a transition between electron energy levels emitting light
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Why does each element have a unique line emission spectrum?
the spectrum combines all colors
each element has unique colors
each prism splits light differently
the electron transitions depend on the element
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What occurs when white light passes through a gas to produce an absorption spectrum?
atoms in the gas absorb photons of particular wavelengths
electrons in the gas emit photons of particular wavelengths
the gas heats up emitting blackbody radiation
photons combine into white light
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What process causes the bright lines in an emission spectrum?
diffuse reflection of photons in the gas
emission of photons by higher energy level electrons
absorption of photons by lower energy level electrons
photon decay into lower energy photons
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What is the name given to a spectrum showing bright lines?
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What is the name given to a spectrum with dark lines?
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What optical device separates light into its spectral components?
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Explain three pieces of information that can be determined from emission and absorption spectra.
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