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MicrobiologyLab1
Questions about "Care and use of the microscope"
Question | Answer |
---|---|
If a lens is in sharp focus on a specimen and an adjacent lens is swung into position with need for only minor adjustment in the focus, the lens is said to be _______. | parfocal |
When a lens in rotated to a higher power, the diameter of the field your eye sees when looking through the microscope is (larger/smaller/the same), but the actual size of the specimen as measured on the slide is (larger/smaller/the same). | smaller, the same |
Total magnification of a lens system is calculated by ________ the magnification of each lens in the system. | multiplying |
The microscope should be stored with the ________ ________ lens in the down position. | lowest power |
The resolving power of a lens depends directly on the ________ of light used. | wavelength |
The distance between the specimen and the objective when it is in focus is called the ________ ________. | working distance |
Numerical aperture is directly related to the ________ of ________ of the glass in a lens. | index (of) refraction |
A lens with pH inscribed on the side would be found on a ________ ________ microscope. | phase contrast |
If the total magnification with a 45X high-power objective is 25X, what would be the magnification of the ocular? | 5X |
The resolution of a microscope is increased by: | Using a shorter wavelength of light. |