A battery has an emf of 3.91 V, but the voltage across the terminals reads 2.61 V when the current through the battery is 3.81 A. What is the internal resistance of the battery

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.