what is mirror formula and magnificention
Answers
mirror formula= 1/f=1/v+1/u
where f - focul length
v - image distance
u - object distance
magnification = h1/h2 = v/u
where h1 - height of the object
h2 - height of the image
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Answer:
The mirror formula
1/f=1/v+1/u
Where f is the focal length of the mirror, u is the distance of the object from the mirror and v is the distance the image is formed from the mirror.
m=−vu
The size of an object’s image is larger (or smaller) than the object itself by its magnification, M. The level of magnification is proportional to the ratio of v and u. An image that is double the size of the object would have magnification M=2.
Explanation:
R=2f
The radius of curvature of a mirror is twice its focal length.
Example 1
In the situation illustrated below, the object is set up .5 m away from a converging mirror. If the focal length of the lens is .2 m, determine a) the location of the real image, and b) the magnification of the image.
Solution:
a) In order to determine the location of the image, we'll use the Mirror Formula.
1f=1v+1uu=−0.5 m,f=−0.2 m1v=−10.2+10.5v=−0.33 m
Here “–” sign shows that image is real.
b) Now that we have the location of the image, we can find the magnification.
m=−vu=−(−0.33)(−0.5)=−0.66
As |m|<1, the size of image is smaller than the object and negative sign shows that image is real and inverted.
