A. Touch the lenses. B. Adjust the focus randomly. C. Clean the lenses. D. Shake the microscope. 相关知识点: 试题来源: 解析 C。解析:使用显微镜前应先清洁镜片。选项 A 触摸镜片会弄脏镜片。选项 B 不能随意调整焦距。选项 D 摇晃显微镜是错误的。反馈...
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A slit-lamp exam is used to check your eye with a microscope for inflammation or injury. A dye may be used to look for damage to your cornea (the surface of your eye). A corneal sample may be taken from an area of your eye to test for infection. Your healthcare provider will num...
Lenses:Lenses are transmissive optical devices that focus or disperse light by means of refraction. The devices are able to accomplish a wide variety of tasks depending on how they are shaped, with applications such as magnification, correction of aberrations, and focusing. Various materials such as...
You’ll need a camera with a good macro lens with that has as little lag as possible. A mirrorless orDSLR camerais generally best to effectively shoot macro photography. There are benefits to using both. ADSLR cameracan accommodate many macro lenses and has little lag between pressing the sh...
If you wear glasses or contact lenses, you should bring them to your exam. And if you’re seeing the eye doctor as a new patient, it’s also good to bring a copy of your written prescription if you have it. They’ll also need to know about any eye symptoms or vision changes you'...
What is the purpose to use the oil immersion in the light microscope? Explain. The oil used in oil immersion on a microscope has the same ___ Index as glass. Why is that important? When cleaning the lenses does it matter which objective you begin cleaning first (...
" They're used to 'clean up' laser light and make it much more spatially coherent. A Spatial Filter is just a very small pinhole with a converging lens upstream: any "incoherent" parts of the beam will never make it through the tiny aperture. It restores an imperfect laser's point-...
Nanotechnology is a multidisciplinary science that looks at how we can manipulate matter at the molecular and atomic level. To do this, we must work on the nanoscale -- a scale so small that we can't see it with a light microscope. In fact, one nanometer is just one-billionth of a me...
If the microscope power is on, but there is no light to view a slide, what might be the problem?Light in a Microscope:Every compound light microscope has a power switch, when we turn this power switch on the light will be turned on and we will be ab...