How to quickly Calculate Cells Size and Magnification. 

You may want to evaluate your role models

Thank you Mr Stanley its understandable

You're very welcome!

you are welcome :)

u measure the scale bar length and divide it by the scale bar unit it gives and with that answer (you get the magnification) you divide it by the length you measure the spider at. hope this helped

@@tropical3005 thanks 👍

@@tropical30055 years later ehh :)))

cheers - glad it helped

Thanks!

No, the scale is for you to measure with a ruler so it is the image size not the actual length

I thought I was the only one who noticed that he got that one wrong

@@amahlemabunda2297 no he isnt wrong, he said point four so 0.4cm

@@anjana2259 ohh yea I see the decimal point

how so, maybe I can clarify?

@@PeterStanley Perhaps due to the fact that this rules cannot apply if you alter the size of what you literally see in the microscope (something unavoidable since you adapt the image to visualize it in your phone or laptop) thus also altering your calculations. In the actual size of the image calculation for example, the "M" remains constant (e.g 400x) but the "I" changes if you visualize fullscreen in an iPhone or in an iPad, doesn´t it?, it doesn´t means that the real, actual size also changes, that is nonsense, it simply means that this rules only apply if the dimensions of what your eye see thorugh the microscope are not altered. That´s why some microscopes have a line already incorporated in the lenses, because it is impractical or even incorrect to measure with a ruler and a photo.