Match the part of the microscope on the left with the correct description on the

Question

Match the part of the microscope on the left with the correct description on the right. 1. ocular lens A. used for precise focusing 2. aperture B. lower support of microscope 3. body tube C. narrows beam of light 4. mechanical stage D. hole in stage 5. fine adjustment knob F. used only at low power 6. base F. has knobs to move slide 7. objective lens C. special paper for cleaning 8. coarse adjustment knob H. eyepiece 9. condenser I. holds ocular lens 10. lens paper J. lens attached to nosepiece 1. Which parts of a microscope are used to regulate the intensity and contrast of light? What is the function of each of these parts? 2. How is magnification controlled in a microscope? 3. Why should you always view a slide at low power first? 4. Briefly explain how to care for a microscope. 5. Describe when to use the coarse adjustment knob and when to use the fine adjustment knob.

Explanation / Answer

A. Matching:

1.( H) 2.( C) 3.( B) 4.(F ) 5.(A ) 6.(D ) 7.( I) 8.( E) 9.( J) 10.( G)

B. Short answer questions:

2. A simple microscope is nothing but a convex lens. It changes the magnification to use the lens with higher curvature/smaller focal length.

3. First we should focus from low power and moving to high power because we can slowly refine the focus and get a better image.

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