Photons and Electrons Flashcards

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1
Q

threshold (cut-off) frequency (fo)

A

the minimum frequency of incident radiation at which electrons will be emitted from a particular metal

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2
Q

work function (Wo)

A

the minimum amount of energy needed to emit an electron from the surface of a metal and know that the work function is material specific

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3
Q

Describe the photoelectric effect

A

the process that occurs
when light shines on a metal and electrons are ejected, it establishes the quantum theory and it illustrates the particle nature of light

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4
Q

What does I.G.Y.O.R. mean and a random hint

A

Indigo
Green
yellow
orange
red

From most frequency and energy to less frequency and energy Thus from closest to feathers

Also when compared with stripe diagrams draw a circle on the stripe and determine the direction/shift of the stripe diagram

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5
Q

When they ask what what is the electrostatic force of A exerted on force B what do they mean?

A

force of B however due to Newtons 3rd law we should know that the electrostatic forces of both A and B are the same

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6
Q

Emission spectrum and absorption spectrum respectively

A

high to low energy and low to high energy. This is concluded by using the electron model

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7
Q

Components of Fg

A

Fgll = mgsinx
FgRHS = mgcosx

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