Term
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Definition
| the distance between two successive wave crests |
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Term
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Definition
| number of wave cycles per unit time |
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Term
| ELECTROMAGNETIC RADIATION |
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Definition
| radio waves, radar, microwaves, infrared, visible light, UV, X-rays, gamma rays |
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Term
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Definition
| the frequencies of light emitted by an element |
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Term
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Definition
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Term
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Definition
| the series of visible lines in the emission spectra of an element. AKA the emission spectra |
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Term
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Definition
| the pattern of colored lines formed when light from excited atoms in the gaseous state is passed through a ______??? |
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Term
| What is plank's constant? |
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Definition
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Term
| v stands for what, c stands for what, h stands for WHAT, while lambda stands for.... |
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Definition
frequency
speed of light
plank's constant
wavelength |
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Term
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Definition
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Term
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Definition
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Term
| DEFINE: PHOTOELECTRIC EFFECT |
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Definition
| ejection of electrons when light strikes the surface of a metal |
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Term
| Experiments with photoelectric cells show that electrons are ejected from the surface ONLY if ________ |
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Definition
| the frequency of the light if high enough |
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Term
| Explain photoelectric cells |
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Definition
| when light strikes the cathode of the cell, electrons are ejected from the cathode surface and move to a positively charged anode |
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Term
| the greater number of ____, the greater the number of photons with this energy that strike the suraface |
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Definition
| photons with needed energy to remove photon w/ atom |
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