The diagram shows a stage micrometer, with divisions 0.1mm apart, viewed through an eyepiece containing a graticule.
What is the area of the field of view of the microscope at this magnification? $\left( {\pi = 3.14} \right)\;$
1 )
$\pi \times 12.5 \times 12.5 = 4.9 \times {10^2}\mu {m^2}$
2 )
$\pi \times 50 \times 50 = 7.9 \times {10^3}\mu {m^2}$
$\pi \times 125 \times 125 = 4.9 \times {10^4}\mu {m^2}$
4 )
$\pi \times 250 \times 250 = 2.0 \times {10^5}\mu {m^2}$
تحلیل ویدئویی تست
تحلیل ویدئویی برای این تست ثبت نشده است!