The 'object lens' in a compound microscope is closest to the object being examined.
Stage controls on a microscope are mechanisms that allow the user to move the stage (where the slide is placed) horizontally and vertically to position the specimen for viewing. These controls are essential for adjusting the position of the specimen under the objective lens for accurate observation and focusing.
On a microscope with the usual 3-lens turret it is usual to use the objective lens with the lowest magnification to first examine your specimen. This gives a wider overall view of the subject, and will allow you to choose the particular detail that best suits your study. You may then move on to a higher magnification, if necessary, to study finer detail. If you started with the highest magnification, your fine focus will be uncertain, and you risk the front of the objective lens coming into contact with the sample slide. This could damage your specimen, and may damage the front of the lens.
The 'object lens' in a compound microscope is closest to the object being examined.
That is called the "objective lens." You can remember it because it is closest to the object you are looking at.
Base unit does not belong as it is generally not part of a typical microscope setup. The other terms (stage, nosepiece, objective lens) are components commonly found in a microscope.
The objective lens
objective lens
The main parts of a microscope include the eyepiece, objective lens, stage, light source, and focusing knobs. The eyepiece magnifies the image, the objective lens provides additional magnification, and the stage holds the specimen. The light source illuminates the specimen, while the focusing knobs adjust the focus of the image.
The objective lens
Stage controls on a microscope are mechanisms that allow the user to move the stage (where the slide is placed) horizontally and vertically to position the specimen for viewing. These controls are essential for adjusting the position of the specimen under the objective lens for accurate observation and focusing.
The objective lens that focuses closest to the slide is 100x, it has the longest lens so the highest power. Be careful not to crack the slide and make sure you use oil if it is an oil immersion lens.
Under the objective lens there is a stage to put the specimen ( the thing you want to look at ).
A microscope has two lenses called the eyepiece lens and the objective lens. The objective lens is closest to the object being viewed and magnifies it, while the eyepiece lens further magnifies the image formed by the objective lens for viewing by the observer.
The oil immersion lens @100x
I think it's the microscope lens or the objective lens. Hope this helps!
On a microscope with the usual 3-lens turret it is usual to use the objective lens with the lowest magnification to first examine your specimen. This gives a wider overall view of the subject, and will allow you to choose the particular detail that best suits your study. You may then move on to a higher magnification, if necessary, to study finer detail. If you started with the highest magnification, your fine focus will be uncertain, and you risk the front of the objective lens coming into contact with the sample slide. This could damage your specimen, and may damage the front of the lens.
An optical microscope used in a laboratory would have 3 different types of lenses.They are :-(1) Condenser lens- directs light to the specimen if there is no in built light source.(2) Eye piece - lens close to the eye of the observer which magnifies the image created by the objective lens.(3) Objective - These are the lenses which are positioned closest to the specimen mounted on the stage of the microscope which magnifies the specimen. There could be several objective lenses in an optical microscope, generally three. The low power objective (usually magnifies 4 times), mid power objective (usually magnifies 10 times) and the high power objective (usually magnifies 40 times).