can someone help me solving this problem?? A pinhole camera is just a rectangula

Question

can someone help me solving this problem??

A pinhole camera is just a rectangular box with a tiny hole in one face. The film is on the face opposite this hole, and that is where the image is formed. The camera forms an image without a lens. A certain pinhole camera is a box that is 21.0cm square and 20.5cm deep, with the hole in the middle of one of the 21.0cm times 21.0cm faces. If this camera is used to photograph a fierce chicken that is 17.0cm high and 1.50m in front of the camera, how large is the image of this bird on the film? What is the magnification of this camera?

Explanation / Answer

as we know,

height of image/height of object=distance of image/distnace of object

so h/0.17=0.205/1.5

h=0.0232 m=2.32 cm

magnification=2.32/17=0.1366

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