Photoelectric Effect, Waves & Quantiztion Flashcards
(24 cards)
What does accuracy mean?
How close a measurement is to the true value
What does precision mean?
How close the same measurements are to each other
What does quantization apply to?
Coins, people, electrons and energy
What is the first wave nature of light?
1) Reflection
What is the second wave nature of light?
2) Refraction
What is the third wave nature of light?
3) Inference
What is the fourth wave nature of light?
4) Interference and Diffraction
Constructive vs. Destructive
Involves Inference
Constructive- waves in phase produce a bright region
Destructive- waves out of phase produce a dark region
What is wavelength?
Distance between crest & crest
What is velocity?
Distance moved by wave crest per unit time
What is frequency?
Number of wave crest per unit time
What produces the electromagnetic spectrum?
Wavelength and frequency varying
Name the order of the electromagnetic spectrum
Whats the frequency equation?
Speed of light over wave length
OR
Velocity over wavelength
What is black body radiation?
Its electromagnetic radiation depends upon temperature for its wave lengths and colors to be emitted, not surface composition
What is photoelectric effect?
Occurs when a light is shone on a metal and electrons get ejected if threshold frequency is passed
Name each colors wavelength
When temp increases what happens?
Frequency increases parallely
What is proportional to energy of a photon?
Frequency is directly proportional to the energy of a photon
Because photons are massless, what is their velocity?
Speed of light
What is the speed of a particle related to?
To its wavelength
The higher the wavelength the lower the what?
Frequency
How are wavelength and energy related
They are inversely related to each other
What is conservation of energy?
Energy cannot be created nor destroyed, only transferred from one source to another
