The lens with the greatest (positive) curvature. The lens with the highest diopter.
The focal length of EyePiece is relatively larger to that of the Objective lens. Power of a lens is inversely proportional to it's focal length. Therefore, Objective is slightly more powerful than EyePiece.
The objective lens in a microscope is responsible for magnifying the specimen being viewed. It gathers light from the specimen and focuses it to create an enlarged image that can be viewed through the eyepiece. The objective lens determines the resolution and magnification of the microscope.
The total magnification of a microscope is calculated by multiplying the power of the objective lens by the power of the eyepiece lens. Given a total magnification of 200x and an eyepiece lens power of 10x, the power of the objective lens would be 200x/10x = 20x.
The shortest objective lens in a microscope is typically referred to as the scanning lens.
Removing slides with a 100x objective in place can damage the objective lens or the slide, as the lens is very close to the slide. Additionally, there is a risk of dropping or mishandling the slide when the objective is at 100x, causing potential damage to both the slide and the objective lens. It is safer to switch to a lower magnification objective before removing the slide.
The ocular is the upper lens and objective is the lower lens
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.
low power objective lens
scanning objective
Because during movement of lens there is no slide below objective .
objective lens
The objective lens
The focal length of EyePiece is relatively larger to that of the Objective lens. Power of a lens is inversely proportional to it's focal length. Therefore, Objective is slightly more powerful than EyePiece.
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 objective lens in a microscope is responsible for magnifying the specimen being viewed. It gathers light from the specimen and focuses it to create an enlarged image that can be viewed through the eyepiece. The objective lens determines the resolution and magnification of the microscope.
There is no other name for the objective lens. However, the eyepiece is also called the ocular lens.
Total magnification increases when the objective lens is increased because the objective lens magnifies the image before it reaches the eyepiece lens. The eyepiece then further magnifies the image for viewing.