QUESTIONS+ABOUT+THE+MICROSCOPE

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1. What two structures on the microscope will you use to focus on your specimen? _ = =

= =  2. Our microscopes have three objectives. What are their powers? = =

= =  3. What is the magnification of the ocular lens? _ = =

= =  4. What is the shortest objective called? _ = =

= =  5. How do you switch objectives?_ ___ = =

= =  6. Which structure controls how much light passes through the specimen? = =

= =  7. You should carry the microscope by placing your palm on the _ and gripping the ___ with your other hand. = =

= =  8. How can you prevent your slide from slipping on the stage = = ||
 * = Calculate the total magnification of the following lenses =
 * (a) using a X10 eye-piece with a X40 objective lens? ||  ||
 * (c) using a X15 eye-piece with a X4 objective lens? ||  ||
 * (d) which is more powerful: a X5 eye-piece and a X20 objective or a X7 eye-piece and a X40 objective? ||  ||
 * (d) which is more powerful: a X5 eye-piece and a X20 objective or a X7 eye-piece and a X40 objective? ||  ||

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