Question

Suppose you measure the low-power field of vision diameter with a ruler and it is 2 mm. If high power is 10X more magnification than low power, how big will the diameter of the field of vision be using high power?

a) 0.2 mm
b) 2 mm
c) 20 mm
d) 200 mm

Answer 1

The high-power field of vision diameter is calculated by dividing the low-power field of vision diameter (2 mm) by the magnification factor (10), resulting in a high-power field of vision diameter of 0.2 mm.

Step-by-step explanation:

When using a microscope, the diameter of the field of vision changes inversely with the magnification power. If the low-power field of vision diameter is 2 mm and the high power is 10 times more magnificant than low power, we can calculate the high-power field of vision diameter by dividing the low-power field diameter by the magnification factor, because the area being viewed becomes smaller as magnification increases.

To find the high-power field of vision diameter:

1. Take the low-power field of vision diameter (2 mm).
2. Divide it by the magnification increase (10x).
3. The high-power field of vision diameter is 0.2 mm.

So the correct answer is (a) 0.2 mm.