What is an angstrom?
An angstrom is a unit of wavelength equal to 1 × 10-10 meters.
What is a nanometer?
A nanometer is 1 × 10-9 meters.
Which is larger, one angstrom or one nanometer?
One nanometer is ten times larger than one angstrom.
Is any unit better than the other?
On page 26 there are five problems to solve. Solve these problems in the space below. (Note: All Windows computers have a built-in calculator. Just go to the Accessories folder under Programs in the Start menu and select "calculator." Under the View menu, select Scientific, and a great calculator will be available.) Study example problems one and two before you do the problems on page 26. When finished, check your work below.
See BYU TECH 43 on-line
Answer: 1 × 108 Hz
Answer: 6.63 × 10-26
Answer: 3 × 1012, and 3 × 1014
Answer: 3.67 × 10-7
Answer: a. 7.5 × 1014
b. 3.97 × 10-7