Calculating Object Height Using a Pinhole Camera

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To calculate the height of an object using a pinhole camera, one can apply the principles of similar triangles. Given that the object is 100m away and the image produced is 5cm high on a screen 10cm from the pinhole, the height of the object can be determined through proportional relationships. Participants suggest drawing a diagram to visualize the setup, which aids in understanding the geometry involved. A link to a resource for finding a suitable diagram is provided for further assistance. Utilizing these methods will lead to the correct calculation of the object's height.
MoniMini
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I don't have any idea how to go about this...
Please help!:frown:

A pinhole camera produces an image of an object kept at a distance of 100m from the pin hole. If the screen is 10 cm from the pin hole and the image is 5 cm high, what is the height of the object

Any help will be appreciated :smile:

Thank You!
 
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Draw the diagram and similar triangles will give you the answer.
 
grzz said:
Draw the diagram and similar triangles will give you the answer.

There is no diagram attached to the question :rolleyes:
 
Try the web for a diagram.
 

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