Micro UTA Lab Practical 1; Questions and
Answers % Correct
scanning objective Correct answer-4x. used to scan LARGE areas
high power objective Correct answer-40x magnification
medium power objective Correct answer-10x magnification
oil immersion objective Correct answer-100X, the objective used for the highest
magnification with oil
light intensity control Correct answer-Regulates light intensity for viewing the specimen
substage condenser Correct answer-two lenses that focus the light passing through the
specimen and improves image sharpness
aperture diaphragm control Correct answer-controls the amount of light entering the
substage condenser from the light source. Most important mechanism for adjusting light.
half open Correct answer-set diaphragm at this when using 10x and 40x objectives
completely open Correct answer-set diaphragm at this when using oil immersion lens
, Micro UTA Lab Practical 1; Questions and
Answers % Correct
Field diaphragm lever Correct answer-opens and closes to increase and decrease light
from the light source
magnification Correct answer-the number of times an image is enlarged
resolution Correct answer-The ability to clearly distinguish the individual parts of an
object
contrast Correct answer-the measure of the differences in appearance between two
objects
lower Correct answer-the lower the magnification the ___________________ the level of
light needed for good contrast.
total magnification Correct answer-objective lens x ocular lens
parfocal lens Correct answer-lens that stays in focus when magnification/focal length is
changed
coarse adjustment Correct answer-only done with the specimen is initially viewed using
the scanning objective
Answers % Correct
scanning objective Correct answer-4x. used to scan LARGE areas
high power objective Correct answer-40x magnification
medium power objective Correct answer-10x magnification
oil immersion objective Correct answer-100X, the objective used for the highest
magnification with oil
light intensity control Correct answer-Regulates light intensity for viewing the specimen
substage condenser Correct answer-two lenses that focus the light passing through the
specimen and improves image sharpness
aperture diaphragm control Correct answer-controls the amount of light entering the
substage condenser from the light source. Most important mechanism for adjusting light.
half open Correct answer-set diaphragm at this when using 10x and 40x objectives
completely open Correct answer-set diaphragm at this when using oil immersion lens
, Micro UTA Lab Practical 1; Questions and
Answers % Correct
Field diaphragm lever Correct answer-opens and closes to increase and decrease light
from the light source
magnification Correct answer-the number of times an image is enlarged
resolution Correct answer-The ability to clearly distinguish the individual parts of an
object
contrast Correct answer-the measure of the differences in appearance between two
objects
lower Correct answer-the lower the magnification the ___________________ the level of
light needed for good contrast.
total magnification Correct answer-objective lens x ocular lens
parfocal lens Correct answer-lens that stays in focus when magnification/focal length is
changed
coarse adjustment Correct answer-only done with the specimen is initially viewed using
the scanning objective
