Question

1. calculate: low power diameter (give answer in both mm and μm)

given:
a. the above formula.
b. low power field diameter = 4.5 mm
c. 800x field diameter = 0.35 mm

Explanation:

Step1: Given low - power field diameter

The low - power field diameter is already given as $4.5$ mm. This is the low - power diameter in mm.

Step2: Convert to micrometers

We know that $1$ mm=$1000$ $\mu$m. So, to convert $4.5$ mm to $\mu$m, we multiply by 1000.
$4.5\times1000 = 4500$ $\mu$m

Answer:

In mm: $4.5$ mm
In $\mu$m: $4500$ $\mu$m