Answer :
Final answer:
The image length of a villus viewed at a magnification of x20 is 16mm.
Explanation:
To calculate the image length when viewing a villus at a magnification of x20, we can use the formula:
image length = real length × magnification.
Given that the real length of the villus is 0.8mm and the magnification is x20, we can substitute these values into the formula to find the image length:
image length = 0.8mm × 20 = 16mm.
Therefore, when the villus is viewed at a magnification of x20, the image length will be 16mm.
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