a gas discharge lamp with prominent emission lines at 245nm, 436 nm and 546 nm is...

a gas discharge lamp with prominent emission lines at 245nm, 436 nm and 546 nm is used to illuminate a sample of iron (wavefunction 4.5 eV). Determine the allowed energies for emitted photoelctrons

Expert Solution

genius_generous answered 2 years ago

When the radiation of 58.4 nm from a helium discharge lamp is directed on a sample...

When the radiation of 58.4 nm from a helium discharge lamp is directed on a sample of krypton, electrons are ejected with a velocity of 1.59 x 10^6m s^-1. THe same radiation ejects electrons from rubidium atoms with a velocity of 2.45 x 10^6m s^-1. What are the ionization energies (in eV) of the two elements?

One of the emission lines of the hydrogen atom has a wavelength of 93.07 nm. In...

One of the emission lines of the hydrogen atom has a wavelength of 93.07 nm. In what region of the electromagnetic spectrum is this emission found? Determine the initial value of n associated with this emission.

Emission lines from the hydrogen Hβ line (rest wavelength of 486.1 nm) are observed in the...

Emission lines from the hydrogen Hβ line (rest wavelength of 486.1 nm) are observed in the spectrum of a spiral galaxy at redshift z = 0.9. The galaxy's disk is observed to be inclined at an angle of 45 degrees to the line of sight. The central wavelength of the line is observed to be shifted by 0.5 nm to the red on one side of the galaxy, and by 0.5 nm to the blue on the other side of...

Atomic hydrogen exhibits a series of emission spectral lines that includes the following wavelengths: 1875 nm,...

Atomic hydrogen exhibits a series of emission spectral lines that includes the following wavelengths: 1875 nm, 1282 nm, and 1094 nm. (a) What is the name of the series of emission spectral lines? (b) What is the wavelength of the next line in the series?

I have D lines at 589.0 nm and 589.6 nm. A diffraction grating with 531.5 lines...

I have D lines at 589.0 nm and 589.6 nm. A diffraction grating with 531.5 lines per mm is used to observe the discrete spectrum of sodium. The angular separation between the D lines is 0.03 degrees. How far away would an observing screen need to be placed for the D lines to be separated by 1.0 mm? The answer I came up with is 3.2 mm but that does not seem correct. When the sodium vapor is placed under...

1) The emission spectrum of a hollow cathode lamp for molybdenum was found to have a...

1) The emission spectrum of a hollow cathode lamp for molybdenum was found to have a sharp peak at 313.3 nm as long as the lamp current was less than 50 mA. At higher currents, however, the peak developed a cup-like crater at its maximum. Explain. 2) Why does the cathode of the hollow cathode lamp have a cylindrical shape? Why is an element lamp required as the source for AA? Which copper line was used for analysis of copper...

1. The lines observed in H-lamp are parts of Balmer Series. All these lines are due...

1. The lines observed in H-lamp are parts of Balmer Series. All these lines are due to a transition from various higher n value to a common n. What is this common lower n value for all these lines? 0 1 2 3 2. The lines on Absorption Atomic Spectra correspond to energies needed for electrons to be excited from a lower energy level to a higher energy level. Assume that the energy needed for an electron in 2p orbital...

Question 1 The lines observed in H-lamp are parts of Balmer Series. All these lines are...

Question 1 The lines observed in H-lamp are parts of Balmer Series. All these lines are due to a transition from various higher n value to a common n. What is this common lower n value for all these lines? 0 1 2 3 ------------------------------------------------------------------------------------------------------ Question 2 The bright violet line of Hg lamp has a wavelength of 435.8 nm. What is the energy of the photon associated with this emission line? 4.56*10^-19 J 4.56*10^-28 J 6.88*10^14 J 2.89*10^-31 J...

The emission wavelength lies between 275 nm and 450 nm and the light yield per neutron...

The emission wavelength lies between 275 nm and 450 nm and the light yield per neutron is reported to be 20000 photons/MeV neutron energy (a) What largest work function of a material used for a photo cathode would be acceptable that still allows detection of an emission originating from the scintillator? (b) What is the maximum kinetic energy of electrons emitted from the photo cathode, given the emission wavelength range of the scintillator? (c) How much charge is being generated...

The CO microwave spectrum has lines at 0.86 nm, 1.29 nm, and 2.59 nm. a) What...

The CO microwave spectrum has lines at 0.86 nm, 1.29 nm, and 2.59 nm. a) What transitions do these lines correspond to? b) What is the bond lenght of this molecule?

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