If the De Broglie Wavelength of an Electron Is 2 $\left( m _ { \text {electron } } = 9.11 \times 10 ^ { - 31 } \mathrm {~kg} , \right.$

question 9

Multiple Choice

If the de Broglie wavelength of an electron is 2.4 μm,what is the speed of the electron? $\left( m _ { \text {electron } } = 9.11 \times 10 ^ { - 31 } \mathrm {~kg} , \right.$ $h = 6.626 \times 10 ^{- 34} \mathrm {~J} \cdot \mathrm { s } )$

• A)3.0 × 10² m/s
• B)2.5 × 10⁵ m/s
• C)1.7 × 10³ m/s
• D)8.3 × 10⁶ m/s

---

Definitions:

Definition

A precise explanation of the meaning of a term or concept, typically providing clarity and context.

Inflammable

Capable of catching fire easily and burning rapidly.

Clarify

To make something easier to understand by providing more details or a simpler explanation.

Imperative Mood

A grammatical mood used to express commands, requests, or instructions.