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user44840
  • Member for 8 years, 7 months
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8 votes
1 answer
4k views

$Q$ factor of parallel RLC circuit in series with a capacitor and resistor

5 votes
2 answers
4k views

Quick question on sketching wavefunction in well

4 votes
2 answers
5k views

Entropy $dQ=TdS$ and Work $dW = -pdV$ conditions?

4 votes
1 answer
4k views

Clebsch-Gordan Coefficients for two spin-1 particles - Why is there a ∣0⟩∣0⟩ ket?

4 votes
1 answer
3k views

Laplace's Equation - under what circumstances does it hold?

4 votes
2 answers
2k views

Why is the excited state of 116 Indium more stable than ground state?

3 votes
1 answer
431 views

Covering centeremost slit of a N slit diffraction grating - what happens?

3 votes
1 answer
223 views

State with non-zero angular momentum - cannot be described by spherical harmonic?

3 votes
2 answers
243 views

Can I simply reverse the indices in a contraction?

3 votes
1 answer
2k views

Quick question on perturbation theory

3 votes
0 answers
4k views

Finding the probability that a $1s$ electron in ${}^3$H remains in the $1s$ state after beta decay to ${}^3$He with the sudden approximation

3 votes
1 answer
2k views

Probability of measuring momentum [closed]

2 votes
1 answer
2k views

Expectation value and Dispersion of an Operator

2 votes
1 answer
2k views

Spatial part of wavefunction of helium, both electrons are in ground state

2 votes
1 answer
817 views

Dielectric sphere placed in another dielectric medium with uniform external field: is there a surface charge density?

2 votes
1 answer
213 views

Time evolution of states - Is total energy constant or not?

2 votes
1 answer
5k views

Speed distribution in 1 dimension

2 votes
1 answer
850 views

Does the average momentum vanish for an eigenstate of the simple harmonic oscillator?

2 votes
0 answers
12 views

Temperature of air effused into tank - different predictions?

2 votes
0 answers
568 views

Degeneracy, spherical harmonics

2 votes
1 answer
781 views

Is the 21cm line of hyperfine structure hydrogen an allowed transition?

1 vote
1 answer
1k views

Why is the phi meson decay width much smaller than rho meson?

1 vote
1 answer
228 views

Muon Neutrinos vs Electron neutrinos

1 vote
1 answer
1k views

Experimental evidence of two neutrinos in muon decay?

1 vote
0 answers
62 views

Compared to the rest in Baryon Octet, why is neutron decay lifetime so long? [duplicate]

1 vote
0 answers
125 views

How do spin orientations change during adiabatic demagnetization of paramagnet?

1 vote
1 answer
400 views

Why don't we need to normalize wavefunction to find probability distribution?

1 vote
1 answer
690 views

Ratio of energy of normal modes of string

1 vote
1 answer
344 views

How does porous anti-reflection coating work?

1 vote
0 answers
407 views

Bandpass of diffraction grating - exit slit width?