Microscope: Eyepiece and Objective Lens
AP - Lab Report Name: ____________________
Section: ___________________
Using the Microscope
Purpose: What is the purpose of this exercise? Is there any safety concerns associated with this exercise? If so, list what they are and what precautions should be taken.
QUESTIONS:
A. The following statements are true or false. If true, write a “T” on the answer line. If false, write a word or phrase in the blank to make the statement true.
__F__ 1) The microscope lens may be cleaned with any soft tissue.
USE ONLY LENS PAPER. REGULAR TISSUES CAN SCRATCH THE LENSES.
__F__ 2) The coarse adjustment knob maybe used in focusing with all objective lenses. COARSE ADJUSTMENT IS ONLY USED ON SCANNING POWER.
__T__ 3) When beginning to focus, the lowest power lens should be used.
__T__ 4) Resolution decreases as the amount of light coming in on the object increases.
__F__ 5) When focusing always focus toward the specimen.
ALWAYS AWAY FROM THE SPECIMEN.
B. Match the microscope structures in column B with the statements or phrases about them in column A.
Column A Column B
__C_ 1) Platform on which the slide rests for viewing. a. nosepiece
__D__ 2) Used for precise focusing after initial focusing b. eyepiece __E__ 3) Used to increase the amount of light passing c. stage through the specimen.
__B__ 4) Lens located on the superior end of the body tube. d. fine focus knob
__A__ 5) Carries the objective lenses and rotates to change e. iris diaphragm magnification.
C. Explain the proper technique for transporting a microscope.
YOU USE TWO HANDS TO CARRY A MICROSCOPE AT ALL TIMES. ONE HAND SHOULD BE ON THE ARMA AND ONE HAND SHOULD BE FLAT ON THE BOTTOM OF THE BASE.
Define the following terms: field of view THE AREA OF THE SLIDE YOU CAN SEE THROUGH THE LENSES WHEN
Section: ___________________
Using the Microscope
Purpose: What is the purpose of this exercise? Is there any safety concerns associated with this exercise? If so, list what they are and what precautions should be taken.
QUESTIONS:
A. The following statements are true or false. If true, write a “T” on the answer line. If false, write a word or phrase in the blank to make the statement true.
__F__ 1) The microscope lens may be cleaned with any soft tissue.
USE ONLY LENS PAPER. REGULAR TISSUES CAN SCRATCH THE LENSES.
__F__ 2) The coarse adjustment knob maybe used in focusing with all objective lenses. COARSE ADJUSTMENT IS ONLY USED ON SCANNING POWER.
__T__ 3) When beginning to focus, the lowest power lens should be used.
__T__ 4) Resolution decreases as the amount of light coming in on the object increases.
__F__ 5) When focusing always focus toward the specimen.
ALWAYS AWAY FROM THE SPECIMEN.
B. Match the microscope structures in column B with the statements or phrases about them in column A.
Column A Column B
__C_ 1) Platform on which the slide rests for viewing. a. nosepiece
__D__ 2) Used for precise focusing after initial focusing b. eyepiece __E__ 3) Used to increase the amount of light passing c. stage through the specimen.
__B__ 4) Lens located on the superior end of the body tube. d. fine focus knob
__A__ 5) Carries the objective lenses and rotates to change e. iris diaphragm magnification.
C. Explain the proper technique for transporting a microscope.
YOU USE TWO HANDS TO CARRY A MICROSCOPE AT ALL TIMES. ONE HAND SHOULD BE ON THE ARMA AND ONE HAND SHOULD BE FLAT ON THE BOTTOM OF THE BASE.
Define the following terms: field of view THE AREA OF THE SLIDE YOU CAN SEE THROUGH THE LENSES WHEN