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This question belongs to Civil Engineering Surveying

Surveying

?

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) $$\frac{{\text{f}}}{{\text{H}}}$$ B) $$\frac{{\text{f}}}{{{\text{H}} + {\text{h}}}}$$ C) $$\frac{{\text{f}}}{{{\text{H}} - {\text{h}}}}$$ D) $$\frac{{{\text{H}} - {\text{h}}}}{{\text{f}}}$$

Answer & Solution

Correct Answer: Option C

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