If you have three threads laying on top of each other on a slide and you are focused on the top-most thread, then ________.
A)all three threads should be in clear focus
B)you are ready to rotate the ocular lens
C)neither the middle nor the bottom-most thread will be in clear focus
D)the middle thread will also be in clear focus

Question

Quizplus · Accepted Answer

When focused on the top-most thread, the other threads will not be in clear focus due to the limited depth of field in microscopy.

If You Have Three Threads Laying on Top of Each