Practice Scale of a Vertical Photograph - 4.9 | 4. Photogrammetry Surveying | Surveying and Geomatics
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4.9 - Scale of a Vertical Photograph

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Learning

Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What is the scale of a vertical photograph if the distance between two objects on the ground is 200m and the distance on the photograph is 2m?

💡 Hint: Use the formula S = ab / AB.

Question 2

Easy

If a camera has a focal length of 50mm and the height is 200m, what is the scale?

💡 Hint: Apply the formula S = f / H.

Practice 4 more questions and get performance evaluation

Interactive Quizzes

Engage in quick quizzes to reinforce what you've learned and check your comprehension.

Question 1

What is the formula for calculating the scale of a vertical photograph?

  • S = f/H
  • S = AB/ab
  • S = f/(H - h)

💡 Hint: Consider how focal length and height interplay in scale determination.

Question 2

True or False: The scale of a photograph remains the same irrespective of the elevation of objects.

  • True
  • False

💡 Hint: Recall how scale changes with varied elevations.

Solve 1 more question and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

You have a vertical photograph taken from an altitude of 1200m with a focal length of 75mm. Calculate the scale. If an object on the ground was measured to be 15m in reality, what would be its size on the photograph?

💡 Hint: Apply the formula for scale and convert distances as needed.

Question 2

Analyze a scenario where the flying height changes from 800m to 1200m with the same focal length of 100mm. Explain how this impacts the scale and why.

💡 Hint: Consider the relationships presented about scale and flight height.

Challenge and get performance evaluation