The+Compound+Light+Microscope

=Unit 1 Cells and Systems=

Chapter 1 The cell is the basic unit of life.

 * 1.1 Observing Living Things**

__The Compound Light Microscope__
A compound light microscope is usually used in science class and medical laboratories. It works by combining the two sets of lenses it has to magnify and focus an image. Each compound microscope has a magnification power. You find the magnification power by multiplying one of the objective lenses by the eyepiece lens. For example: (low-power objective lens) 4 x (eyepiece lens) 10 = (magnification power) 40. The microscope ables you to distinguish between two dots or objects that are very close to each other; this is called resolving power.

__These are the parts and functions of a compound microscope:__
Eyepiece: this is used for viewing and it contains a lens that magnifies. Arm: supports the eyepiece. Coarse focus knob: brings an object into focus at low or medium power. Fine focus knob: brings an object into focus at high power. Objective lenses: magnifies the image. Resolving nosepiece: Holds the three objective lenses. Stage: supports the slide. Stage clips: holds the slide in place. Light source: supplies light to view the slide. Base: supports the entire microscope.

med-60x high-100x || two dots or objects that are very close together. || hand on the arm and the other one the base. Only then can you pick it up. || when you look into the eyepiece? || It looks like it is turned upside down because of the lenses that are magnifing the image. ||
 * **Questions** || **Answers.** ||
 * 1. What is the magnification of each:
 * lower-power objective lenses
 * medium power objective lenses
 * high power objective lenses || low-40x
 * 2. What is the magnification of the eyepiece lens? || The magnification of the eyepiece is 10x. ||
 * 3.What is resolving power? || Resolving power is the abiltiy to distinguish between
 * 3.What is resolving power? || Resolving power is the abiltiy to distinguish between
 * 3.What is resolving power? || Resolving power is the abiltiy to distinguish between
 * 4. How do you hold a compound microscope? || To hold a compuond microscope you must put one
 * 4. How do you hold a compound microscope? || To hold a compuond microscope you must put one
 * 5. Why does the letter "e" appear upside down
 * 5. Why does the letter "e" appear upside down