Can you help me with this physics homework? please

Which statement is true for light passing into a medium that is more optically dense than the first medium through which it past

What determines the amount of inertia an object has

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.