Which of the following statements is true?
A) To obtain the total magnification, multiply the power of the objective lens by the power of the condenser.
B) When observing a densely stained slide on oil, move the condenser all the way down and close the iris diaphragm.
C) To obtain maximum magnification, immersion oil is added when using the 45´ objective.
D) You should focus a specimen under the 100´ objective with only the fine-focus adjustment knob.

Question

Quizplus · Accepted Answer

When using the 100´ objective lens, only the fine-focus adjustment knob should be used to avoid damaging the lens and the specimen. The other statements are incorrect - the total magnification is obtained by multiplying the power of the objective lens by the power of the ocular lens, the condenser should be moved up and the iris diaphragm opened for a densely stained slide, and immersion oil is used for objectives with a higher power than 45´.

Which of the Following Statements Is True