What kind of a spectrum is emitted by a hot glowing solid liquid or compressed gas?
Using a slit and prism, physicists discovered that when a solid, liquid, or dense gas is heated to glow, it emits a smooth spectrum of light with no lines: a continuum. A rarefied hot gas, on the other hand, glows only in certain colors, or wavelengths: bright, narrow emission lines instead of a rainbow band.
What type of spectrum is produced when the light emitted from a hot dense object passes through a cooler low density cloud before passing through the observers prism?
A hot dense energy source such as light passes through a cool dense cloud and has some energy absorbed, then passes through a prism and shows us an absorption spectrum.
Which of the following Spectra will result from a hot tenuous gas?
Astronomy chp 3
| Question | Answer |
|---|---|
| Which of the following spectra will result from a hot tenuous gas? A. Dark absorption lines on a continuous emission spectrum B. Equally spaced bright emission lines C. Both A and B D. Emission lines characteristics of atoms in the gas | Emission lines charactericis of atoms in the gas |
What type of spectrum is produced when the light emitted directly from a low density cloud passes through a prism?
That light should pass through a cool, low-density cloud to produce an absorption spectrum.
What is a discrete line spectrum?
What is Discrete Spectrum? A discrete spectrum is a series of attainable values of a physical quantity having a positive gap between each value. This is opposite to the continuous spectrum. This type of spectrum occurs due to electrons falling from some bound quantum state to a lower energy state.
What is continuous emission and absorption spectra?
Continuous spectra (also called thermal or blackbody spectra) arise from dense gases or solid objects which radiate heat. They emit radiation over a broad range of wavelengths, thus the spectra appear smooth and continuous.
Which type of spectrum is produced by hot dense objects which type of spectrum is produced by hot dense objects black body thermal emission Doppler absorption?
The continuous spectrum from these kinds of objects is also called a thermal spectrum, because hot, dense objects will emit electromagnetic radiation at all wavelengths or colors. Any solid, liquid and dense (thick) gas at a temperature above absolute zero will produce a thermal spectrum.
What type of spectra does a hot dense gas produce?
continuous spectrum A hot, dense gas or solid object produces a continuous spectrum with no dark spectral lines. A hot, diffuse gas produces bright spectral lines (emission lines) A cool, diffuse gas in front of a source of continuous radiation produces dark spectral lines (absorption lines) in the continuous spectrum.
Which type of spectrum is produced by hot dense object?
blackbody spectrum A hot, dense object produces a continuous spectrum(blackbody spectrum). A hot, low-density gas produces an emission-line spectrum. A cool, dense gas produces an absorption-line spectrum.
Which type of spectrum do you expect to see when observing such a hot thin gas absorption or emission?
A low density, hot gas seen against a cooler background emits a BRIGHT LINE or EMISSION LINE spectrum. A low density, cool gas in front of a hotter source of a continuous spectrum creates a DARK LINE or ABSORPTION LINE spectrum.
What is the type of spectrum created by a hot dense object quizlet?
A hot, solid object will emit a continuous spectrum. Kirchhoff's Law #1 – The excited atoms within a hot dense object give off light of all colors (wavelengths) and produce a continuous spectrum — a complete rainbow of colors (range of wavelengths) without any spectral lines.
What is discrete and continuous spectrum?
Typically one can observe two distinctive classes of spectra: continous and discrete. For a continuous spectrum, the light is composed of a wide, continuous range of colors (energies). With discrete spectra, one sees only bright or dark lines at very distinct and sharply-defined colors (energies).
What is a continuous emission spectrum?
Continuous Spectrum: A continuous spectrum contains all wavelengths of light in a certain range. Hot, dense light sources like stars, for example, emit a nearly continuous spectrum of light, which travels out in all directions and interacts with other materials in space.
What emits a continuous spectrum?
Hot, dense light sources like stars, for example, emit a nearly continuous spectrum of light, which travels out in all directions and interacts with other materials in space. The broad range of colors that a star emits depends on its temperature.
What is discontinuous spectrum?
A discontinuous spectrum is a spectrum that contains gaps, holes, or breaks in terms of the wavelengths that it contains. Complete answer: Atomic spectra also known as line spectra. Atomic spectra are discontinuous because the energy levels of electrons in atoms are quantized.
Which type of spectrum is produced by hot dense objects?
continuous spectra Most continuous spectra are from hot, dense objects like stars, planets, or moons. The continuous spectrum from these kinds of objects is also called a thermal spectrum, because hot, dense objects will emit electromagnetic radiation at all wavelengths or colors.
Which type of spectrum is produced by hot dense objects which type of spectrum is produced by hot dense objects absorption black body thermal Doppler emission?
continuous spectra Most continuous spectra are from hot, dense objects like stars, planets, or moons. The continuous spectrum from these kinds of objects is also called a thermal spectrum, because hot, dense objects will emit electromagnetic radiation at all wavelengths or colors.
What emits continuous spectrum?
Hot, dense light sources like stars, for example, emit a nearly continuous spectrum of light, which travels out in all directions and interacts with other materials in space. The broad range of colors that a star emits depends on its temperature.
Which type of spectrum is produced by hot dense objects quizlet?
A hot, solid object will emit a continuous spectrum. Kirchhoff's Law #1 – The excited atoms within a hot dense object give off light of all colors (wavelengths) and produce a continuous spectrum — a complete rainbow of colors (range of wavelengths) without any spectral lines.
What type of spectrum is produced by a hot diffuse object?
continuous spectrum A hot, dense gas or solid object produces a continuous spectrum with no dark spectral lines. A hot, diffuse gas produces bright spectral lines (emission lines) A cool, diffuse gas in front of a source of continuous radiation produces dark spectral lines (absorption lines) in the continuous spectrum.
What is discrete emission spectrum?
With discrete spectra, one sees only bright or dark lines at very distinct and sharply-defined colors (energies). As we'll discover shortly, discrete spectra with bright lines are called emission spectra, those with dark lines are termed absorption spectra.
What is continuous and discontinuous spectrum?
A continuous spectrum contains every wavelength between the wavelength on which the spectrum starts and the wavelength on which the spectrum ends. A discontinuous spectrum is a spectrum that contains gaps, holes, or breaks in terms of the wavelengths that it contains.
What are the 3 types of spectrums?
Types of Spectra: Continuous, Emission, and Absorption.
What is an example of a continuous spectrum?
A rainbow is an example of a continuous spectrum. Here, the colors displayed are within the visible spectrum (between 380-760 nm). Light in this wavelength range is visible to the naked eye. Unlike the visible spectrum, light that is of different wavelengths (see the electromagnetic spectrum below) is not visible.
What are the types of emission spectrum?
The emission spectrum is of three types.
- Continuous spectrum.
- Line spectrum and.
- Band spectrum.
Nov 3, 2015
What kind of spectrum do you get if you look at a hot low density cloud against a dark cold background?
A low density, hot gas seen against a cooler background emits a BRIGHT LINE or EMISSION LINE spectrum. A low density, cool gas in front of a hotter source of a continuous spectrum creates a DARK LINE or ABSORPTION LINE spectrum.
What is continuous & discontinuous spectrum?
A continuous spectrum contains every wavelength between the wavelength on which the spectrum starts and the wavelength on which the spectrum ends. A discontinuous spectrum is a spectrum that contains gaps, holes, or breaks in terms of the wavelengths that it contains.
What is continuous emission spectrum?
: a spectrum (as of light emitted by a white-hot lamp filament) having no apparent breaks or gaps throughout its wavelength range.
What is continuous and line spectrum?
A continuous spectrum consists of all wavelengths within a certain range. This spectrum looks like a rainbow. In contrast, a line spectrum only consists of a few wavelengths. This spectrum is made of a few colored lines on a dark background. The lines in spectra are caused by electrons moving in between energy levels.
What is the linear spectrum?
quantum theory atoms is known as a line spectrum, because the radiation (light) emitted consists of a series of sharp lines. The wavelengths of the lines are characteristic of the element and may form extremely complex patterns.