How large is the image of the Sun on film used in a camera with a) a 28-mm-focal-length lens, b) a 50-mmfocal-length lens, and c) a 135-mm-focal-length lens? d) If the 50-mm lens is considered normal for this camera, what relative magnification does each of the other two lenses provide? The Sun has diameter 1.4 x 10^6 km and it is 1.5 x 10^8 km away.

a 28-mm-focal-length lens,
a 50-mmfocal-length lens, and
a 135-mm-focal-length lens?
If the 50-mm lens is considered normal for this camera, what relative magnification does each of the other two lenses provide? The Sun has diameter $1.4 \times 10^6 \textrm{ km}$ and it is $1.5 \times 10^8 \textrm{ km}$ away.

0.26 mm
0.47 mm
1.3 mm
$M_{28 \textrm{mm}} = 0.56\textrm{x, } M_{135\textrm{mm}} = 2.7 \textrm{x}$

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