Concept explainers
Interpretation:
The energy per photon of lightfor the given
Concept introduction:
A photon is a quantum unit of space (particle)with an oscillating
Photons are always in motion. Invacuum, a photontravels at a constant speed of
The relation between the
Here,
The frequency of electromagnetic radiation is used to determine the amount of energy carried by one of its photons.
The energy of the photon is directly proportional to their frequency.
Here,
The conversion from meter to nanometer is as:
The conversion factor to obtain the units of the wavelength in
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CHEMISTRY LOOSELEAF TEXT W/CONNECT >IP
- Selenium atoms have a particular transition that emits light of frequency 1.53 1015 Hz. (Hz is the abbreviation for hertz, which is equivalent to the unit/s, or s1.) Is this light in the visible spectrum? If so, what is the color of the light? (See Figure 7.5.)arrow_forward6.12 Find the energy of a photon with each of the following frequencies (see Table 1.2 if needed). (a) 15.3 THz, (b) 1.7 EHz, (c) 6.221010 Hzarrow_forwardA particular transition of the rubidium atom emits light whose frequency is 3.84 1014 Hz. (Hz is the abbreviation for hertz, which is equivalent to the unit/s, or s1.) Is this light in the visible spectrum? If so, what is the color of the light? (See Figure 7.5.)arrow_forward
- Radio waves in the AM region have frequencies in the range 530 to 1700 kilocycles per second (530 to 1700 kHz). Calculate the wavelength corresponding to a radio wave of frequency 1.460 106/s (that is, 1460 kHz).arrow_forward6.86 An excited He+ ion returns to the ground state by emitting a series of three photons, with wavelengths of 26 nm, 469 nm, and 1014 nm. The process is represented in the energy level diagram below. Which arrow (A, B, or C) in the diagram represents the 1014-nm light?arrow_forwardOne type of electromagnetic radiation has a frequency of 107.1 MHz, another type has a wavelength of 2.12 1010 m, and another type of electromagnetic radiation has photons with energy equal to 3.97 1019 J/pboton. Identify each type of electromagnetic radiation and place them in order of increasing photon energy and increasing frequency.arrow_forward
- Human color vision is " produced" by the nervous system based on how three different cone receptors interact with photons of light in the eye. These three different types of cones interact with photons of different frequency light, as indicated in the following chart: Cone Type Range of Light Frequency Detected S 6.00-7.49 1014s1 M 4.76-6.62 1014s1 L 4.28-6.00 1014s1 What wavelength ranges (and corresponding colors) do the three types of cones detect?arrow_forwardWhat is the wavelength of the electromagnetic radiation emitted from a hydrogen atom when the electron undergoes the transition n = 4 to n = 1? In what region of the spectrum does this line occur? (See Figure 7.5.)arrow_forwardWhich photons contain more energy, X-ray photons with a frequency of 31017 Hz or ultraviolet photons with a frequency of 21015 Hz? X-ray photons Ultraviolet photons Neither. They both contain the same energy per photon.arrow_forward
- The lasers used in supermarket scanners emit red light at a wavelength of 633 nm. Compact disc players use lasers that emit light (that is not visible) at 840 nm. Which photonsthose emitted by supermarket scanners or compact disc (CD) playerscontain more energy per photon? Supermarket scanners CD players They both contain the same amount of energy per photon.arrow_forwardAssume your eyes receive a signal consisting of blue light, = 470 nm. The energy of the signal is 2.50 1014 J. How many photons reach your eyes?arrow_forward
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