How does the position of the letter viewed through the microscope differ from the actual position of the letter on the slide?

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Biology-stevens

Terms in this set (3)

Purpose:
In this investigation, you will learn the parts of a compound light microscope, the functions of those parts, and the proper use and care of the microscope. You will also learn the technique of preparing wet-mount slides.

Problem:
What is the proper use of a compound light microscope?

Pre-Lab Discussion
1. Why might it be a good idea to keep your microscope at least 10 cm from the table?
2. Why should a microscope slide and coverslip be held by their edges?
3. Why do scientists use microscopes?
4. Why should you use lens paper only once?
5. Why is it important to eliminate air bubbles from the slide?

1. To keep from knocking the microscope off the table.
2. To prevent fingerprints and smudges from getting on them and interfering with the view of the object under the microscope.
3. To study things not easily visible to the naked eye.
4. Lens paper that has been used can get dust that could damage the next lens on which it is used.
5. Air bubbles might cause changes or blur the image.

Analysis
1. Why do you place one hand under the base of the microscope as you carry it?
2. How is the image of an object seen through the high-power objective different from the image seen through the low-power objective?
3. How does the position of the letter "e" as seen through the microscope differ from the way an "e" normally appears?
4. Explain why a specimen to be viewed under the microscope must be thin.
5. Why should you never use coarse adjustment when focusing on the high-power objective lens?
6. Suppose you were observing an organism through the microscope and noticed that it moved toward the bottom of the slide and then it moved to the right. What does this tell you about the actual movement of the organism?

1. To make sure the microscope doesn't fall
2. The high-power will have more of a narrow view, but the image will seem larger and more detailed than an image seen through the low-power objective.
3. The letter "e" is upside down and backward.
4.Light must be able to pass through the specimen in order for you to see detail. The light is shining from the mirror below the stage, through the specimen, the objective lens, the body of the microscope, and the eyepiece to your eye.
5. This could harm and scratch the lens. The high-power objective lens is the longest lens, so using coarse adjustment could smash it into the slide.
6. The microscope makes it appear to move in a direction exactly opposite to that of their actual movement on the slide. The organism originally actually moved toward the top of the slide and then to the left.

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How does the position of letter viewed through the microscope differ from the actual position of the letter on the slide?

Answer and Explanation: The microscope magnifies the images of small objects and makes them much clear and visible. Under a microscope, the letter e appears to be flipped upside down because of the two lenses on the microscope.

When looking at letter under the microscope What is the position of the letter as seen under the microscope?

The letter appears upside down and backwards because of two sets of mirrors in the microscope. This means that the slide must be moved in the opposite direction that you want the image to move.

How does the position of a specimen appear under the microscope?

A specimen that is right-side up and facing right on the microscope slide will appear upside-down and facing left when viewed through a microscope, and vice versa. Similarly, if the slide is moved left while looking through the microscope, it will appear to move right, and if moved down, it will seem to move up.

What is the position of the letter?

In letter-context schemes, a letter's position is defined relative to its surrounding letters. In syllabic schemes, a letter's position is defined relative to the syllable in which it appears, and its role within that syllable.