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What is the wavelength of a yellow light with a frequency of \( 5.2 \times 10^{14} \mathrm{~Hz} \) ? Give your answer in proper scientific notation \[ [?] \times 10^{[?]} \mathrm{m} \] c \( =3.0 \times 10^{8} \mathrm{~m} / \mathrm{s} \) Enter the coefficient in the green box and the exponent in the yellow box.

Ask by Bolton Hilton. in the United States
Jan 24,2025

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The wavelength is \( 5.77 \times 10^{-7} \, \mathrm{m} \).

Solución

To find the wavelength (\( \lambda \)) of light, we can use the formula: \[ \lambda = \frac{c}{f} \] where: - \( c \) is the speed of light (\( 3.0 \times 10^{8} \, \mathrm{m/s} \)) - \( f \) is the frequency of the light (\( 5.2 \times 10^{14} \, \mathrm{Hz} \)) Now, let's substitute the values into the formula and calculate the wavelength step by step. 1. Substitute the values into the formula: \[ \lambda = \frac{3.0 \times 10^{8}}{5.2 \times 10^{14}} \] 2. Perform the division of the coefficients and the subtraction of the exponents: \[ \lambda = \frac{3.0}{5.2} \times 10^{8 - 14} \] Now, let's calculate \( \frac{3.0}{5.2} \) and \( 8 - 14 \). Calculating \( \frac{3.0}{5.2} \): \[ \frac{3.0}{5.2} \approx 0.576923 \] And calculating \( 8 - 14 \): \[ 8 - 14 = -6 \] So, we have: \[ \lambda \approx 0.576923 \times 10^{-6} \] To express this in proper scientific notation, we can rewrite \( 0.576923 \) as \( 5.76923 \times 10^{-1} \): \[ \lambda \approx 5.76923 \times 10^{-1} \times 10^{-6} = 5.76923 \times 10^{-7} \] Now, rounding \( 5.76923 \) to three significant figures gives us \( 5.77 \). Thus, the wavelength of the yellow light is: \[ \lambda \approx 5.77 \times 10^{-7} \, \mathrm{m} \] In the required format, the coefficient is \( 5.77 \) and the exponent is \( -7 \). So, the final answer is: - Coefficient: \( 5.77 \) - Exponent: \( -7 \)

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Beyond the Answer

To find the wavelength \( \lambda \) of yellow light, we can use the formula: \[ \lambda = \frac{c}{f} \] where \( c = 3.0 \times 10^{8} \mathrm{~m/s} \) (speed of light) and \( f = 5.2 \times 10^{14} \mathrm{~Hz} \). Plugging in the values: \[ \lambda = \frac{3.0 \times 10^{8} \mathrm{~m/s}}{5.2 \times 10^{14} \mathrm{~Hz}} \approx 5.769 \times 10^{-7} \mathrm{~m} \] When expressed in scientific notation, this can be written as: \[ 5.769 \times 10^{-7} \mathrm{m} \] So, in the format requested, your answer is: \[ [5.769] \times 10^{[-7]} \mathrm{m} \] Wavelengths of light are crucial in understanding how we see colors! Did you know that our eyes can perceive wavelengths approximately between \( 400 \) nm (violet) to \( 700 \) nm (red)? Yellow light, sitting around \( 570 \) nm, makes things super vibrant! Wonder how the color impacts real life? Artists and designers often use the concept of wavelength when selecting colors for their works. The human brain interprets different wavelengths as different colors, making the study of wavelengths essential for many fields, from physics to visual arts!

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