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Why do you use on or slide to be examined with the oil immersion objective?
If you are using the oil immersion objective on a microscope, you must use oil to increase the resolution of the lens. These lens are used at very high magnification.
Why should you only use the fine adjustment when the high power objective is in position?
Because if you use the coarse adjustment under high power, there is a greater risk that you will crack the slide on the microscope and damage it. The fine adjustment only moves the objective lense small amounts and very slowly, so there is no chance that you will damage the slide.
When should you use scanning lens on the microscope?
The scanning lens of a compound microscope is used whenever a new slide is viewed or when the view of the specimen in the field of a higher power lens is lost. Think of it as the "neutral" position for the lens array. The scanning lens has the greatest working distance of the lens group on the microscope and is far enough away from the slide to avoid crunching the slide (and possibly damaging the lens) when attempting to focus. Many microscopes are parfocal, meaning that once you have a focused view of the specimen with the scan lens the image will be in, or very near in, focus when you swivel to a higher power lens. Very important! If you can't find a good view at higher power, or you "lose" the specimen after trying to focus with the fine focus knob only, go back to the scanner lens. Never use the coarse focus with anything but the scanner lens in position. Not doing this is probably the number one reason slides get crunched. And everyone will know because it usually makes an unmistakable sound that reverberates all over the lab.
Why is it necessary to use emmersion oil with the 100x objective?
because at this magnification the light diffraction in air is to important to have enough light reach the lens, so oil should be in the contact between the slide and the lens because it has a much lower refraction index than air allowing more light to reach the lens
Why would you always use the low-power objective lens to locate objects mounted on the slide first even if you want to observe them with the high power objective lens?
because it allows you to find the part of the slide you want to see, then you can zoom in by changing focus to see the frame in greater detail. if you don't start in low power it is extremely difficult to move around the slide
What kind of lens does a projector use?
projector have concave or convex
Does a movie projector use a concave lens?
No, a movie projector uses a convex lens.
What do camera photocopier and slide projector have in common?
A camera, a photocopier, and a slide projector all use lenses to perform their functions.
What type of lens does an overhead projector use.?
Convex lens because i said so
What type lens does an overhead projector use?
Convex lens because i said so
What models of Argus slide projector use 543 tray?
The Automatic 543 is the model of the projector that takes this tray.
Which lens use in projector?
since you need to show the image on a big screen so you require a diverging lens i.e. a concave lens
What type of does an overhead projector use?
Convex lens because i said so
Can i use a slide projector at my wedding to do a slide show of my father and I?
Slide projectors are considered "old technology", but if you have slides and a projector, showing them would emphasize that you and your dad predate PowerPoint. And that's not a bad thing.
What type of lens must a slide projector have in order to get an upright image?
Most slide projectors use mounts that are 50mm x 50mm square with an image that is 24mm x 36mm. The image can either be in landscape view, wider that it is high or in portrait view, higher than it is wide. The shape of the image on a screen is dependant entirely on the way the slide is inserted into the slide magazine or into the gate of the projector. Lenses are no different for the two views.
Which lens should you use to first look at a slide on a microscope?
The lens that you should use to first look at a slide on a microscope is a low power lens then move on to a higher power for more clarity.
Which lens on a microscope should you use first to look at a slide?
The lens that you should use to first look at a slide on a microscope is a low power lens then move on to a higher power for more clarity.
