The scale of a vertical photograph of focal length f taken from height of H metres above M.S.L., at a point of reduced level h, is

The scale of a vertical photograph of focal length f taken from height

1.	The scale of a vertical photograph of focal length f taken from height of H metres above M.S.L., at a point of reduced level h, is
A.	<img src="/_files/images/civil-engineering/advanced-surveying/91-4.136-3.png">
B.	<img src="/_files/images/civil-engineering/advanced-surveying/89-4.101-1.png">
C.	<img src="/_files/images/civil-engineering/advanced-surveying/89-4.101-2.png">
D.	<img src="/_files/images/civil-engineering/advanced-surveying/89-4.101-3.png">
Answer» D. <img src="/_files/images/civil-engineering/advanced-surveying/89-4.101-3.png">