Why does a microscope slide need to be transparent?
A so light can reflect back on to the light source
B so light can partially refract from the slide
C so light can spread out evenly along the slide
D so light can pass through the slide to the objective
D so light can pass through the slide to the objective
The transparency of a microscope slide is important because it allows light to pass through the slide to the objective lens of the microscope. This is necessary for the specimen on the slide to be properly illuminated and magnified for observation. If the slide is not transparent, the light would be blocked and the image of the specimen would not be visible.