The only time the oil immersion lense should be used is A. when bacteria and ext

Question

The only time the oil immersion lense should be used is A. when bacteria and extremely small cells are being observed B. when observing wet mount preparations C. when observing dry mount preparations D. when observing whole mount preparations The only time the oil immersion lense should be used is A. when bacteria and extremely small cells are being observed B. when observing wet mount preparations C. when observing dry mount preparations D. when observing whole mount preparations A. when bacteria and extremely small cells are being observed B. when observing wet mount preparations C. when observing dry mount preparations D. when observing whole mount preparations

Explanation / Answer

The correct answer is option C that is oil immersion lenses should be used when observing dry Mount preparation because when we use dry lenses, the amount of light refraction is noticeable when we use oil immersion lens, more light is directed towards the objective lens and we can get crisp images.

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