In the Scattering of Fast Alpha Particles by a Thin

question 21

Multiple Choice

In the scattering of fast alpha particles by a thin foil of gold, Rutherford and his collaborators observed

• A) alpha particles interacting with nuclei to produce beta rays and alpha particles moving equally in all directions.
• B) cathode rays emerging from the foil.
• C) most of the alpha particles bouncing straight back with very few passing through the foil undisturbed.
• D) a very few alpha particles scattered through large angles with most undergoing very little scattering.

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Definitions:

Time Delay

A deliberate pause introduced in a process or system, usually used to ensure proper timing or synchronization between components or operations.

ControlLogix Controller

A type of PLC from Allen-Bradley designed for high-performance control and scalable integration within an automation environment.

TIMER Data Type

A specialized data type in programming used to measure time intervals or delay actions in a precise and controlled way, often used in automation and control applications.

RES Instruction

A directive in assembly or machine language programming used for resetting or clearing a register or memory location.