11. What is the purpose of staining the specimen with iodine solution?

A To make the specimen bigger

C.to make the specimen smaller

B. To make the specimen less visible

D. to make the specimen more visible

12. Why must a small object seen through the eyepiece lens be centered in the field of view changing to a higher power objective lens?

A. to prevent damage to the objective lens.

B. to prevent the disappearance due to the decrease in the field of view.

C to prevent eye strain.

D. to prevent damage of the specimen.

13. Why is it necessary for the specimen to be observed under the microscope to be very thin?

A. So that the image will be clearer

C. So that the light could pass through the specimen

B. So that the image would be bigger

D. So that the high magnification objective can be used

4. What is the total magnification of the specimen seen under an eyepiece of 10X and 42X HPO?
A. 52X

B.420X

C.4200X

D.42X

15.A specimen is focused under a scanner, you were asked to shift it to LPO. Which procedure should you follow to be able to correctly focus the specimen under LPO?

A. Turn the revolving nosepiece until LPO is aligned to the hole in the stage. The proper alignment indicates proper position of the LPO.

B. Turn the revolving nosepiece until a clicking sound is heard. The sound indicates that the objective is properly positioned.

C.Turn the revolving nosepiece until the LPO is aligned to the body tube and eyepiece. The proper alignment indicates proper position of the LPO.

D.Turn revolving nosepiece until you think it is positioned correctly. That is the best procedure based on your own understanding.​