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WorksheetsQuantum
Total questions: 25
Worksheet time: 16mins
Which of the following is the characteristic of a black body?
A perfect absorber but an imperfect radiator
A perfect radiator but an imperfect absorber
A perfect radiator and a perfect absorber
A perfect conductor
What is Compton shift?
Shift in frequency
Shift in charges
Shift in radiation
Shift in wavelength
Compton shift depends on which of the following?
Incident radiation
Nature of scattering substance
Angle of scattering
Amplitude of frequency
As the wavelength of the radiation decreases, the intensity of the black body radiations ____________
Increases
Decreases
First increases then decrease
First decreases then increase
During Einstein’s Photoelectric Experiment, what changes are observed when the frequency of the incident radiation is increased?
The value of saturation current increases
No effect
The value of stopping potential increases
The value of stopping potential decreases
What is the time lag between the incidence of photons and the ejection of photoelectrons?
Greater than 10-5 s
Between 10-5 s and 10-9 s
Less than 10-9 s
1 second
How does the intensity affect the photoelectric current?
As intensity increases, the photoelectric effect increases
As the intensity increases, the photoelectric effect decreases
As the intensity decreases, the photoelectric effect becomes twice
No effect
The photoelectric emission could be explained by the ____________
Wave nature of light
Particle nature of light
Dual nature of light
Quantum nature
The work function of lithium is 2.5 eV. The maximum wavelength of light that can cause the photoelectric effect in lithium is ______________
3980 Å
4980 Å
5980 Å
6980 Å
The Kinetic energy of a photoelectron emitted on shining a light of wavelength 6.2 X 10-6 m on a metal surface of work function 0.1 eV is _________________
0.01 eV
0.02 eV
0.1 eV
1 eV
For Pair Production phenomenon to occur the photon must have energy, greater than or equal to ______________
0.51 MeV
1.02 MeV
0.32 MeV
0.85 MeV
What kind of photon is required for the pair production phenomenon to occur?
Visible Light Photon
X-ray Photon
γ-ray Photon
UV Photon
Charge and momentum are conserved in Pair Production
True
False
Which of the following is the correct expression for the Schrödinger wave function?
iℏdΨdt=−iℏ2m∂Ψ∂x+UΨ
iℏdΨdt=−iℏ2m∂2Ψ∂x2+UΨ
iℏdΨdt=−iℏz2m∂Ψpartialx+UΨ
iℏdΨdt=−iℏz2m∂2Ψ∂x2+UΨ
For a quantum wave particle, E = _____________
ℏ k
ℏ ω
ℏ ω/2
ℏ k/2
Which of the following is not a characteristic of wave function?
Continuous
Single valued
Differentiable
Physically Significant
Any wave function can be written as a linear combination of _________________
Eigen Vectors
Eigen Values
Eigen Functions
Operators
The Schrodinger wave equation is _______
Linear
Quadratic
Differential equation
Derivable
If Ψ1 and Ψ2 are two solutions of Schrodinger Wave equation then which of the following is also a solution?
Ψ1/Ψ2
Ψ1Ψ2
Ψ2/Ψ1
Ψ1 + Ψ2
The expectation value of which measurement cannot be calculated using the typical method?
Energy
Speed
Position
Momentum
Any restrictions present on the particle’s motion in a Schrodinger Equation would affect the ___________
Ψ
dΨ/dt
d2Ψ/dx2
U
The values of Energy for which Schrodinger’s steady state equation can be solved is called as _____________
Eigen Vectors
Eigen Values
Eigen Functions
Operators
Which quantity is said to be degenerate when HΨn = EnΨn?
Eigen Vectors
Eigen Values
Eigen Functions
Operators
The expectation value of which measurement cannot be calculated using the typical method?
Energy
Speed
Position
momemtum
The Schrödinger is a differential equation.
True
False
