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

question 22

Multiple Choice

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

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

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Definitions:

Yield Point

The stress at which a material begins to deform permanently, marking the end of elastic behavior and the beginning of plastic behavior.

Clamping Pressure

The force applied by a device to hold or secure objects tightly together, preventing movement or separation.

Allen Wrench

Hex-shaped wrenches designed to fit into recessed hex Allen screws.

Hex Drive

A tool or fastener interface characterized by a six-sided shape, commonly used for screws and bolts.