Question

the iris diaphragm, located between the light source and the condenser, can be used to increase or decrease the intensity of the light entering the condenser and to control the contrast of the image. locate the lever that operates the iris diaphragm beneath the stage and move it back and forth. note how this movement causes the size of the opening in the diaphragm to change. (some microscopes have a revolving plate called a disc diaphragm beneath the stage instead of an iris diaphragm. disc diaphragms have different - sized holes to admit varying amounts of light.) which way do you move the diaphragm to increase the light intensity? ______ which way to decrease it? ____ after light passes through a specimen mounted on a microscope slide, it enters an objective lens system. this lens projects the light upward into the body tube, where it produces a magnified image of the object being viewed. the eyepiece (ocular) lens system then magnifies this image to produce another image, seen by the eye. typically, the eyepiece lens magnifies the image ten times (10×). look for the number in the metal of the eyepiece that indicates its power (fig. 4.4). what is the eyepiece power of your microscope? ______ the objective lenses are mounted in a rotating nosepiece so that different magnifications can be achieved by rotating any one of several objective lenses into position above the specimen. commonly, this set of

Explanation:

To determine the eyepiece power, we look at the marking on the eyepiece. The eyepiece in the image has the marking "EW10XD/20", where "10X" indicates the magnification power. Typically, eyepiece power is marked as a number followed by "×", and here the relevant part for power is 10×, meaning the eyepiece power is 10 times (or 10×).

Answer:

The eyepiece power of the microscope is 10× (or 10 times magnification).