In an Electron Microscope, Electrons Are Accelerated to Great Velocities

question 66

Multiple Choice

In an electron microscope, electrons are accelerated to great velocities.Calculate the wavelength of an electron traveling with a velocity of 7.0 × 10³ kilometers per second.The mass of an electron is 9.1 × 10^-28 g.

• A)1.0 × 10^-13 m
• B)1.0 × 10^-10 m
• C)1.0 × 10^-7 m
• D)1.0 m

---

Definitions:

Car Speeds

The rates at which an automobile travels, typically measured in miles per hour or kilometers per hour.

Mean (μ)

A statistical measure, represented by the symbol μ, that calculates the average of a set of numbers by dividing the sum of these numbers by their quantity.

Normal Model

A statistical representation where data points form a bell-shaped curve around the mean, indicating a normal distribution.

Cutoff Values

Specific points on a scale that separate data into distinct categories or groups for analysis.