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WorksheetsQuantum Physics*
Total questions: 23
Worksheet time: 11mins
De Broglie equation
relates the momentum of a mass to its wavelength
relates the energy of a mass to its wavelength
relates the frequency of a mass to its wavelength
relates the work function of a mass to its wavelength
If waves can behave like particles, then particles can behave like a wave. This is the idea behind...
Quantization of Energy
Photoelectric Effect
Compton Effect
deBroglie Waves
Uncertainty Principle
The energy of a particle trapped inside an infinite deep potential well is 8 eV. If the width of the well is halved then it's energy becomes
2 eV
4 eV
16 eV
32 eV
Name the scientist who created an equation to treat the electron as a wave
Planck
Heisenberg
de Broglie
Schrodinger
The SI unit of frequency is the __________.
meter
second
hertz
meter per second
The square of the magnitude of the wave function is called_________
Current density
Probability density
Zero density
Volume density
A ____ is a discrete, quantized bundle of energy
Photoelectric effect
Photon
Quantized
Proton
The equation which links Energy to wavelength is...
E=hf
E=λhf
E=λhc
c=fλ
What does the p stand for?
power
momentum
pressure
principle axis
What's the name of the infamous experiment in Quantum Physics?
Double-Split Experiment
One-Slit Experiment
Double-Decker Experiment
Double-Slit Experiment
What is inside the nucleus of the atom?
electrons and protons
protons and quarks
protons and neutrons
neutrons and electrons
Photoelectrons will be ejected from a material surface if?
The threshold frequency is greater than the photon frequency
The work function is less than the photon energy
The intensity of light is high enough
The wavelength of photon is maximum
A monochromatic light beam with a quantum energy of 9.0 eV is incident upon a photocell. The work function of the photocell is 4.1 eV. What is the maximum kinetic energy of the electron.
4.2 eV
4.4 eV
4.7 eV
4.9 eV
A metal surface is struck with light of λ = 400 nm, releasing a stream of electrons. If the 400 nm light is replaced by λ= 300 nm light of the same intensity, what is the result?
More electrons are emitted in a given time interval
Fewer electrons are emitted in a given time interval
Emitted electrons are more energetic
Emitted electrons are less energetic
Which of the following colors of visible light has the highest frequency?
Blue
Green
Orange
Red
Violet
Which of the following colors of visible light has the lowest frequency?
blue
green
yellow
red
violet
Which of the following colors of visible light has the longest wavelength?
Blue
Green
Yellow
Red
Violet
Wave -particle duality is supported by...
electrons behaving as particles with ordinary matter
electrons behaving as waves when travelling through space
the photo electric effect
all of the above
Planck's constant can be found ...
energy of a particle x speed of light / wavelength
energy of a particle x speed of light / frequency of light
energy of a particle x wavelength / speed of light
slope of the cut-off voltage vs frequency graph
De Broglie equation
relates the momentum of a mass to its wavelength
relates the energy of a mass to its wavelength
relates the frequency of a mass to its wavelength
relates the work function of a mass to its wavelength
All electromagnetic waves...
travel at the speed of light
can be reflected
can exhibit interference
all of the above
When light of specific frequencies is shined on a surface, electrons are ejected from the surface. This is the idea behind...
Quantization of Energy
Photoelectric Effect
Compton Effect
deBroglie Waves
Uncertainty Principle
If waves can behave like particles, then particles can behave like a wave. This is the idea behind...
Quantization of Energy
Photoelectric Effect
Compton Effect
deBroglie Waves
Uncertainty Principle
