1) Size of the image: 2 cm
In order to calculate the size of the image, we can use the following proportion:
where
p = 80 m is the distance of the tree from the pinhole
q = 20 cm = 0.2 m is the distance of the image from the pinhole
= 8 m is the heigth of the object
is the height of the image
By re-arranging the proportion, we find
2) Magnification: 0.0025
The magnification of a camera is given by the ratio between the size of the image and the size of the real object:
so, in this problem we have
The change of color. Each color has a different wavelength therefore a different frequency.
Answer:
wedges are a type of inclined plane.
Explanation:
i just answered :) :) :)
<span>the mechanical advantage of a pulley is 1.0
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