A magnification of 4X objective is fairly modest. You should be able to hide a good chunk of the slide. With a 10x magnification, however, we can no longer see the oscillatory clearly because of the narrow depth of field. The oscillatory may now be visualized by gradually bringing the slide into focus using fine-tuning.
This is further explained below.
Generally, The practice of increasing something's perceived size, as opposed to its actual size, is referred to as magnification.
In conclusion, The magnification is quite modest when using a 4X objective. You have the capability of covering the majority of the slide. If we convert to 10x,
the magnification will rise; nevertheless, it will only concentrate across a tiny area, which will cause oscillatory to become blurry. Now, using fine-tuning in a methodical and careful manner, bring the slide into focus so that you can see the oscillatory.
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