Question Detail

BIO 101 BIO 101 Past Questions Objective Question

Question

Why should coarse adjustment knobs never be used under high-power (40x or 100x) objectives?
Options
A It misaligns the electrical illuminator
B The objective may hit and crack the slide or break the lens
Correct Answer
C It reverses the polarity of the condenser
D It permanently dims the field of view
Correct Answer

Option B is the correct answer.

Detailed Explanation

Because high-power objectives have very short working distances, coarse adjustment can drive the lens into the slide.

Hint

No hint available

Question Info