The image area on 35 mm film is 24 mm $\times$ 36 mm.What focal length lens of the following will allow an image of the moon,0.50$^{\circ}$ in diameter,to just fit on the film?
A) 2.8 m
B) 1.4 m
C) 0.85 m
D) 12 mm
E) 55 mm

Question

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The Answer of The image area on 35 mm film is 24 mm $\times$ 36 mm.What focal length lens of the following will allow an image of the moon,0.50$^{\circ}$ in diameter,to just fit on the film?
A) 2.8 m
B) 1.4 m
C) 0.85 m
D) 12 mm
E) 55 mm

The Image Area on 35 Mm Film Is 24 Mm ×\times×

The Image Area on 35 Mm Film Is 24 Mm $\times$