A photograph of a landscape is captured by a drone camera at a height of 18 km. The size of the camera film is…

Question

A photograph of a landscape is captured by a drone camera at a height of $18 \, \text{km}$ . The size of the camera film is $2 \, \text{cm} \times 2 \, \text{cm}$ and the area of the landscape photographed is $400 \, \text{km}^2$ . The focal length of the lens in the drone camera is:

A
$0.9 \, \text{cm}$
B
$2.8 \, \text{cm}$
C
$2.5 \, \text{cm}$
D
$1.8 \, \text{cm}$

Accepted Answer

D. $$1.8 \, 	ext{cm}$$

Answer

A. $$0.9 \, 	ext{cm}$$

Answer

B. $$2.8 \, 	ext{cm}$$

Answer

C. $$2.5 \, 	ext{cm}$$

Answer & step-by-step solution

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