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You should typically start with the lowest power lens (usually 4x or 10x) on a microscope to locate and focus on your specimen. This allows you to have a wider field of view and better control over the focusing before switching to higher power lenses for more magnification.
You should start with the lowest magnification lens, typically the scanning lens (4x or 5x), to locate and center the specimen on the slide. This allows you to get a general overview of the slide before increasing the magnification with higher-power objectives.
The objective lens contains the lens with low power magnification in a microscope.
Yes, when using a compound light microscope, it is recommended to start with the lowest power lens (usually 4x or 10x) to locate and center the specimen before switching to higher magnifications. This helps in getting a broader view and making it easier to focus accurately at higher magnifications.
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 lowest power of a microscope is typically 4x, known as the scanning objective lens.