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The Thickness of the Ozone Layer Can Be Estimated Using lnI0lnI=kxsecθ\ln I _ { 0 } - \ln I = k x \sec \theta

Question 17

Multiple Choice

The thickness of the ozone layer can be estimated using the formula lnI0lnI=kxsecθ\ln I _ { 0 } - \ln I = k x \sec \theta where I 0 is the intensity of a particular wavelength of light from the sun before it reaches the atmosphere, I is the intensity of the same wavelength after passing through a layer of ozone x centimeters thick, k is the absorption constant of ozone for that wavelength, and 66 is the acute angle that the sunlight makes with the vertical. Suppose that for a wavelength of 3,055 xx 10 - 8 centimeter with k N\mathbb { N } 1.93, I o /I is measured as 1.72 and θ=12\theta = 12 ^ { \circ } . Approximate the thickness of the ozone layer to the nearest 0.01 centimeter.


A) x=0.27x = 0.27 cm
B) x=0.51x = 0.51 cm
C) x=0.26x = 0.26 cm
D) x=0.29x = 0.29 cm
E) x=0.30x = 0.30 cm

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