Figure 25–48 was taken from the NIST Laboratory (National
Chapter 25, Problem 68GP(choose chapter or problem)
Figure 25-48 was taken from the NIST Laboratory (National Institute of Standards and Technology) in Boulder, CO, \(2.0 \mathrm{~km}\) from the hiker in the photo. The Sun's image was \(15 \mathrm{~mm}\) across on the film. Estimate the focal length of the camera lens (actually a telescope). The Sun has diameter \(1.4 x 10^{6} \mathrm{~km}\), and it is
\(1.5 x 10^{8} \mathrm{~km}\) away.
Equation Transcription:
Text Transcription:
2.0 km
15 mm
1.4 x 10^6km
1.5 x 10^8km
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