B.Sc. Physics Exam
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B.Sc. Physics Exam pinned ยซ๐Ÿ“ŒQuiz๐Ÿšจ
In a common-collector amplifier (emitter follower), the voltage gain is
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๐Ÿ“ŒQuiz๐Ÿšจ
What happens to the energy stored in a charged capacitor when a dielectric slab is inserted while connected to a battery?
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24%
Decreases
46%
Increases
19%
emains constant
11%
Becomes zero
B.Sc. Physics Exam pinned ยซ๐Ÿ“ŒQuiz๐Ÿšจ
What happens to the energy stored in a charged capacitor when a dielectric slab is inserted while connected to a battery?
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๐Ÿ“ŒQuiz๐Ÿšจ
Which instrument measures electrical potential difference without drawing any current from the circuit?
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Anonymous Quiz
27%
Moving-coil voltmeter
45%
Potentiometer
12%
Digital multimeter
15%
Galvanometer
๐Ÿ“ŒIn Compton scattering, the maximum shift in wavelength occurs when the photon scattering angle is ?
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15%
0 degree
19%
90 degree
53%
180 degree
13%
45 degree
๐Ÿ“ŒThe ground state of a particle trapped inside a three-dimensional cubic box is ?
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11%
Triply degenerate
56%
Non-degenerate
22%
Six-fold degenerate
11%
Infinitely degenerate
B.Sc. Physics Exam pinned ยซ๐Ÿ“ŒThe ground state of a particle trapped inside a three-dimensional cubic box is ?
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๐Ÿ“ŒQuiz๐Ÿšจ
In Special Relativity, which quantity remains completely identical across all inertial reference frames?
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53%
Space-time interval
9%
Clock ticking rate
7%
Measured rod length
31%
Total relativistic energy
B.Sc. Physics Exam pinned ยซ๐Ÿ“ŒQuiz๐Ÿšจ
In Special Relativity, which quantity remains completely identical across all inertial reference frames?
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The historic Davisson-Germer crystal experiment provided definitive evidence for ?
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28%
Particle-like behavior of light
49%
Wave properties of matter particles
17%
Electron intrinsic angular momentum
6%
Relativistic mass increase
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What happens when the position and momentum operators of a quantum particle are applied in reverse order?
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14%
They yield identical outcomes
47%
The outcomes differ because the operators do not commute
37%
Both operators collapse to null operators
2%
The wave packet dissolves
B.Sc. Physics Exam pinned ยซ๐Ÿ“ŒQuiz๐Ÿšจ
What happens when the position and momentum operators of a quantum particle are applied in reverse order?
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๐Ÿ“ŒQuiz๐Ÿšจ
According to the Bohr model, an orbit with a larger principal label exhibits an orbital magnetic dipole moment that is ?
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Anonymous Quiz
45%
Larger
16%
Smaller
35%
Identical across all orbits
3%
Strictly zero
B.Sc. Physics Exam pinned ยซ๐Ÿ“ŒQuiz๐Ÿšจ
According to the Bohr model, an orbit with a larger principal label exhibits an orbital magnetic dipole moment that is ?
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๐Ÿ“ŒQuiz๐Ÿšจ
Even if an attractive one-dimensional potential well is made extremely shallow, the well still contains ?
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Anonymous Quiz
14%
Zero trapped states
46%
At least one bound state
18%
An infinite ladder of states
21%
Only continuous radiation states
B.Sc. Physics Exam pinned ยซ๐Ÿ“ŒQuiz๐Ÿšจ
Even if an attractive one-dimensional potential well is made extremely shallow, the well still contains ?
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๐Ÿ“ŒQuiz๐Ÿšจ
For any stationary state described by a purely real spatial wavefunction, the net average momentum of the particle is ?
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13%
Nonzero and positive
7%
Nonzero and negative
70%
Exactly zero
10%
Undefined
B.Sc. Physics Exam pinned ยซ๐Ÿ“ŒQuiz๐Ÿšจ
For any stationary state described by a purely real spatial wavefunction, the net average momentum of the particle is ?
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In quantum mechanics, the physical significance of the squared magnitude of a wavefunction represents ?
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Anonymous Quiz
7%
Electric field strength
3%
Matter density
83%
Probability density of finding the particle
7%
Particle speed
B.Sc. Physics Exam pinned ยซ๐Ÿ“ŒQuiz๐Ÿšจ
In quantum mechanics, the physical significance of the squared magnitude of a wavefunction represents ?
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