What are the powers of each objective on a compound microscope?

A compound microscope typically has multiple objective lenses, each with different magnification powers. Common objectives include low power (4x or 10x), which provide a wide field of view for scanning samples; medium power (10x or 40x), which offers greater detail for observing cellular structures; and high power (100x), which allows for the highest detail and resolution, often requiring oil immersion to improve clarity. The combination of these objectives allows for a versatile approach to viewing specimens at various levels of detail.