The Experimental Observation(s) Below That Require(s) a Quantum Explanation for the Photoelectric

question 34

Multiple Choice

The experimental observation(s) below that require(s) a quantum explanation for the photoelectric effect

• A) is that more photoelectrons are emitted when the light frequency increases.
• B) is that the maximum kinetic energy of the photoelectrons is related linearly to the frequency of the light.
• C) is that every metal surface has a work function, a minimum amount of energy needed to free electrons.
• D) is that the stopping potential measures the kinetic energy of the photoelectrons.
• E) are all of the above.

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Definitions:

\(70e^{-0.5x}\)

An exponential function representing growth or decay, where 70 is the initial quantity and \(-0.5x\) adjusts the rate of increase or decrease.

Real Number

A figure that indicates a quantity on an unbroken scale, comprising both rational and irrational numbers.

Horizontal Asymptote

A horizontal line that a graph approaches as the input or output values become infinitely large in absolute value.

\(15^{-x}\)

An expression representing the reciprocal of 15 raised to the power of x, used in mathematical and financial calculations.