Academic Integrity: tutoring, explanations, and feedback — we don’t complete graded work or submit on a student’s behalf.

If the total magnification of a slide is 400x and the ocular lenses are 10x, wha

ID: 150264 • Letter: I

Question

If the total magnification of a slide is 400x and the ocular lenses are 10x, what is the magnifying power of the objective being used? If the total magnification of a slide is 400x and the ocular lenses are 10x, what is the magnifying power of the objective being used? If the total magnification of a slide is 400x and the ocular lenses are 10x, what is the magnifying power of the objective being used? me high-power objective, which adjüsthient khou be used to sharpen the focus? ela porw13. Which objective should be in place when the microscope is put away? dl 14. If threads are layered from top to bottom, brown, green, red, which layer will come into oner is Seofocus first if you are using the microscope properly? Thought Questions 15. Which type of microscope should be used to view a virus that is 50 nm in size? Justify your choice. 16. Justify your choice of an objective to use when starting your observation of the Euglena wet mount, if the Euglena are swimming to the left, which way should you move your slide to keep the organism in view 17. If you use the coarse-adjustment knob to focus on an object with the high-power objective, what problems will you encounter? Explain. 2-1 Laboratory 2 Metric Measurement and Microscopy

Explanation / Answer

15) Electron microscope(SEM or TEM) should be used to view a virus that is 50 nm in size. It is because virus are considerably smaller than bacteria. A special vessel is present in SEM which is mainly used for liquid sample of viruses.

16)You should move your slide to right to keep the organism view. It is because when you look an object is moving from right to left under the microscope that means in actual slide, object is moving from left to right.

17) There are two types of knobs are present in the microscope. a) coarse adjustment knob b) fine adjustment knob. Coarse adjustmunt knob is used only with low power objectives. It is used to bring the objective close in focus. If someone change the lens position low to high. The distance between lens and stage is too small. It could break the slide and even damage the lens. For that reason we should use fine adjustment knob to see the specimen.

Q)If the total magnification of a slide is 400x and the ocular lenses are 10x, what is the magnifying power of the objective being used?

Ans- Total magnifiction = magnifying power of the objective × ocular lenses magnification

Therefore magnifying power of objective= 400/10=40x