Final answer:
The subject of this question is Physics. Additional adjustments to the microscope can be made regarding lighting, which are important for proper illumination of the specimen.
Step-by-step explanation:
The subject of this question is Physics. In a microscope, lighting adjustments can be made to enhance the image. These adjustments are important for proper illumination of the specimen and can be made using various techniques like dark field illumination, high magnification illumination with reflected light, etc.