Question

The scale of an aerial photograph primarily depends on

• A. Focal length and flying height
• B. Sun elevation
• C. Film sensitivity
• D. Ground relief

Hint:

Aerial photograph scale: \[ \boxed{ \text{Scale}=\frac{f}{H} } \] where \(f\) = focal length and \(H\) = flying height above ground.

Answer 1

The Correct Option is A

The average scale of a vertical aerial photograph is \[ \text{Scale}=\frac{f}{H} \] where \[ f=\text{camera focal length}, \qquad H=\text{flying height above ground}. \] Thus, the scale primarily depends on the focal length and flying height. Hence, \[ \boxed{\text{Focal length and flying height}} \] is the correct answer. Therefore, \[ \boxed{(A)} \]