A 12m tall tree to be photographs with pin hole camera it is situated 15 m away from camera how far should screen place from pin hole camera to obtain 15m tall image of tree

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To determine the distance at which the screen should be placed from the pinhole camera to obtain a 15m tall image of the tree, we can use similar triangles.

First, let's label the distances:
Distance from the tree to the pinhole camera = 15m (let's call it A)
Distance from the pinhole camera to the screen = unknown (let's call it B)
Height of the tree = 12m (let's call it C)
Height of the image on the screen = 15m (let's call it D)

Now, let's set up a proportion using the similar triangles formed by the tree, the camera, and the screen:
AB/AC = BD/CD

Substituting the given values:
B/15 = 15/12

To solve for B, cross-multiply the equation:
12B = 15 * 15

Now, divide both sides by 12:
B = (15 * 15) / 12

Calculating the value of B:
B = 18.75

Therefore, the screen should be placed approximately 18.75m away from the pinhole camera to obtain a 15m tall image of the tree.

The screen should be placed 15cm from the pin hole to obtain a 12cm tall image of the tree. We can solve this by using the formula of magnification.

Very bad explain

Formula we will be using:

-------------------------------------------
Given,

Plug in the known values in the formula:

Distance of the image = 15cm

Therefore, the screen should be placed 15cm from the pinhole.

Answer : 15cm