Four students measure the mass of an object, each using a different scale. They record their results as follows: A: 49.06g, B: 49g, C: 50g, D: 49.2g. Which student used the most precise scale?

Which of the following is a characteristic shared by both electron and light microscopes? a. they both employ the use of objective lenses. b. both microscopes require an internal camera to visualize the specimen. c. both microscopes have a resolving power of 0.01 nm. d. they both utilize white light to magnify the specimen.