Editing Light And Energy Equations - Revised 2022-2023
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Answer the following problems showing all work. Remember, you are solving the problems either using dimensional analysis (DA) or equation method.<br> Remember<br> a. Your constants or conversion factors are c = 3.00E8 m/s or 3.00E8 m Hz, 1 Hz = 1 (1/s), h = 6.60E-34 <nowiki>J/Hz</nowiki><br> b. If you use equations they are c=(λ)(f), E=(h)(f)<br> c. Write 1/s as one unit over another not a slash <br> d. For example, 6.50E-4 m also can be written as 6.50 X 10<sup>-4</sup> m <br> e. For knowing color, leave blank until I get you a visible light spectrum with wavelength scale <br> <u>Light Equation</u><br> <br> 1) What is the frequency of light (Hz) if it has a wavelength of 625nm ?<br> <br> 2) What is the frequency of light (Hz) if it has a wavelength of 452nm ?<br> <br> 3) What is the wavelength (in nm) of light that has a frequency of 7.25E14 Hz? <br> <br> 4) What is the wavelength (in nm) of light that has a frequency of 4.76E14 Hz? <br> <br> <br> <u>Energy Equation (also called Planck's Equation)</u><br> <br> 5) What is the the energy in light that has a frequency of 6.27E14 Hz?<br> <br> 6) What is the frequency of light (Hz) if the energy (Planck said energy packet size) is 4.95E-19 J?<br> <br> 7) What is the energy (as Planck said, the photon) of the light if it has a frequency of 7.15E14Hz ?<br> <br> 8) What is the frequency of light if the energy is 3.14E-19J ?<br> <br> <br> Answers (need 3 sig fig in answer):<br> 1) 4.80E14 Hz<br> 2) 6.64E14 Hz<br> 3) 413 nm<br> 4) 630 nm<br> 5) 4.14E-19 J<br> 6) 7.50E14 Hz<br> 7) 4.72E-19 J<br> 8) 4.76E14 Hz<br>
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