This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: What is the difference between parfocal and parcentric? How do the parfocal and parcentric ... (Read 30 times)

appyboo

  • Hero Member
  • *****
  • Posts: 527
on: Jul 21, 2018

What is the difference between parfocal and parcentric? How do the parfocal
  and parcentric properties of the compound light microscope affect its use?


 
  What will be an ideal response?

Question 2

How wide is the field of view? Record your measurement in Table 3-2 of the
  lab manual.


 
  What will be an ideal response?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

gabrielle_lawrence

  • Sr. Member
  • ****
  • Posts: 353
Reply #1 on: Jul 21, 2018
Answer to Question 1

Parfocal is the property of a compound microscope that relates to focus. When an
object is in focus using a low-power objective, and the objective is switched, the object
should remain in focus. Parcentric refers to the relative position of an object in the
field of view. When an object is in the center of the field of view under lower-power
magnification and when the objective lens is switched, the object should still be in the
center of the field of view. If the lenses of the compound microscope are properly
aligned, the parfocal and par-centric properties of the microscope should increase the
speed of focus under a variety of magnifications and make the location of the object
being viewed far easier.



Answer to Question 2

The diameter of the field of view under the 400X (high-dry) objective is calculated
as the diameter measured for the 4X divided by 10. The diameter of the field of
view under the 100X objective is 0.45 mm or 450 m.



appyboo

  • Member
  • Posts: 527
Reply 2 on: Jul 21, 2018
:D TYSM

triiciiaa

  • Member
  • Posts: 349
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

« previous next »
 

Did you know?

Blood is approximately twice as thick as water because of the cells and other components found in it.

Did you know?

Multiple experimental evidences have confirmed that at the molecular level, cancer is caused by lesions in cellular DNA.

Did you know?

Drugs are in development that may cure asthma and hay fever once and for all. They target leukotrienes, which are known to cause tightening of the air passages in the lungs and increase mucus productions in nasal passages.

Did you know?

Warfarin was developed as a consequence of the study of a strange bleeding disorder that suddenly occurred in cattle on the northern prairies of the United States in the early 1900s.

Did you know?

Every flu season is different, and even healthy people can get extremely sick from the flu, as well as spread it to others. The flu season can begin as early as October and last as late as May. Every person over six months of age should get an annual flu vaccine. The vaccine cannot cause you to get influenza, but in some seasons, may not be completely able to prevent you from acquiring influenza due to changes in causative viruses. The viruses in the flu shot are killed—there is no way they can give you the flu. Minor side effects include soreness, redness, or swelling where the shot was given. It is possible to develop a slight fever, and body aches, but these are simply signs that the body is responding to the vaccine and making itself ready to fight off the influenza virus should you come in contact with it.

Brachial Plexus drawing plus the difference in the forearm Brachial Plexus drawing plus the difference in the forearm
The difference between a human and an ape. The difference between a human and an ape.
A difference in oxygen content between the atmosphere and the exhaust gases enables an O2S to ... A difference in oxygen content between the atmosphere and the exhaust gases enables an O2S to ...
Difference spectra of mitochondria Difference spectra of mitochondria
There Is a Difference between Natural and Added Sugars There Is a Difference between Natural and Added Sugars
Difference between the house and the senate Difference between the house and the senate
Video: Labor and Childbirth - The Three Stages of Labor: Dilation, Expulsion & Placental مراحل الولادة

For a complete list of videos, visit our video library