Activity 3 The Color Visible Spectrum Objectives: 1. Relate wavelength and frequency of the visible light. 2. Describe the order of colors base on wavelength, frequency, and energy. Materials: Light Spectrum Picture with data of frequency, wavelength and photon energy Procedure: 1. Examine the figure of The Visible Light Spectrum. Record your observation in the table following the format below. Colors Red Orange Yellow Green Blue Indigo Violet Frequency (Hz) Wavelength(nm) Photon Energy(eV)
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Identify the data for frequency, wavelength, and photon energy for each color in the visible spectrum. Show more…
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Q1. Which color has the highest frequency? Shortest wavelength? Q2. What color has the lowest frequency? Longest wavelength? Q3. Does the frequency of the colors of light increase from red to violet? Q4. What did you observe about the corresponding energies from red to violet? Q5. How is frequency related to the energy of colors of light?
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Activity 11. ROY G. BIV Directions: Arrange the colors below as requested. BLUE GREEN YELLOW ORANGE RED VIOLET INDIGO 1. Arrange the colors in increasing wavelength (from left to right) 2. Arrange the colors in increasing frequency (from left to right) 3. Arrange the colors in increasing energy (from left to right)
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a) Which has the greater wavelength, blue light or red light? b) How do the frequencies of blue light and red light compare? c) How does the energy of blue light compare with that of red light? d) Does blue light have a greater speed than red light? e) How does the energy of three photons from a blue light source compare with the energy of one photon of blue light from the same source? How does the energy of two photons corresponding to a wavelength of $451 \mathrm{nm}$ (blue light) compare with the energy of three photons corresponding to a wavelength of $704 \mathrm{nm}$ (red light)? f) A hydrogen atom with an electron in its ground state interacts with a photon of light with a wavelength of $1.22 \times 10^{-6} \mathrm{~m} .$ Could the electron make a transition from the ground state to a higher energy level? If it does make a transition, indicate which one. If no transition can occur, explain. g) If you have one mole of hydrogen atoms with their electrons in the $n=1$ level, what is the minimum number of photons you would need to interact with
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