Let's think step by step! Objects that are a few nanometers in size can be seen only with:
Options:
- (A) an electron microscope
- (B) refraction of light
- (C) matter vibrating
- (D) ultrasound
- (E) The bending of a ray of light
- (F) slight magnification
- (G) flashlights
- (H) lens
The thinking starts now:
Viruses are so small that they can be seen only with an electron microscope. Viruses Viruses are very small, a few nanometers in size. Objects that are only a few nanometers in size can be seen only with an electron microscope. The final answer: (A).