- #1
rishch
- 106
- 1
We're learning about magnification and they say how magnification is the ratio of the visual angle while looking through the instrument to that with the naked eye and then they say,
For small angles, magnification is defined as,
m= height of the image/height of the object
Why only for small angles, I thought this works for any angle? Is it an approximation.
I thought that height of image/height of object was the definition of magnification in the first place, how can it not apply for large angle or is this only when we're looking for magnification as it appears to our eye?
For small angles, magnification is defined as,
m= height of the image/height of the object
Why only for small angles, I thought this works for any angle? Is it an approximation.
I thought that height of image/height of object was the definition of magnification in the first place, how can it not apply for large angle or is this only when we're looking for magnification as it appears to our eye?