1|Page
PHYS 1260 FINAL EXAM LATEST 2026-2027 ACTUAL EXAM WITH
COMPLETE QUESTIONS AND CORRECT DETAILED ANSWERS (100%
VERIFIED ANSWERS) |ALREADY GRADED A+| ||PROFESSOR
VERIFIED|| ||BRANDNEW!!!||
Bohr model's 4 assumptions - ANSWER-1. A single electron of
negative charge electron orbits the nucleus of positive charge
electron
2. Only certain size orbits are allowed
3. Whenin one of its allowed orbits, the electron emit no radiation
4. When an electron changes from a high-energy orbit to a lower-
energy orbit, the excess energy is emitted as a photon
The superposition of waves can produce - ANSWER-
Reinforcement
Cancellation
Partial cancellation
The superposition identical waves affect - ANSWER-Amplitude
X(t)=Asin(...)
,2|Page
The wave-particle duality applies to - ANSWER-Photons
Electrons
Protons
After passing through double slits, electrons make a pattern on a
screen that - ANSWER-resembles a pattern that waves make
You and a friend can share the same space and time
measurements when - ANSWER-You are side-by-side at rest OR
You both are side-by-side moving at constant velocity
Special relativity - ANSWER-Inertial frame of reference
Inertial - ANSWER-Not accelerating
Objects moving at relativistic speeds appear to observers at rest
to be - ANSWER-Contracted
,3|Page
To outside observers at rest, the overall sizes of objects traveling
at relativistic speeds are - ANSWER-Smaller
According to the well-known equation E = mc2, - ANSWER-mass
and energy are related
E=mc^2 - ANSWER-Mass is vast amounts of condensed energy
According to Einstein's theory of special relativity - ANSWER-
Space and time are aspects of each other
Energy and mass are aspects of each other
Heisenberg's uncertainty principle is - ANSWER-Noticeable only
for submicroscopic particles
A fundamental principle in quantum mechanisms
Predominant in the atomic domain
Quantization is electron energy states in an atom is better
understood in terms of the electron's - ANSWER-Wave nature
, 4|Page
This discrete radii and energy starts of atoms in an integral
number of - ANSWER-de Broglie wavelengths
Which radiation has no association with electric charge? -
ANSWER-Gamma
Alpha and beta particles are deflected by a magnetic field in -
ANSWER-opposite directions
Magnetic fields - ANSWER-Deflect
If gamma goes through the field, which way is he deflected? -
ANSWER-No deflection (direction)
No charge - ANSWER-No deflection
For an isotope with a half-life of two days, at the end of four days
the amount that remains is - ANSWER-One-quarter
PHYS 1260 FINAL EXAM LATEST 2026-2027 ACTUAL EXAM WITH
COMPLETE QUESTIONS AND CORRECT DETAILED ANSWERS (100%
VERIFIED ANSWERS) |ALREADY GRADED A+| ||PROFESSOR
VERIFIED|| ||BRANDNEW!!!||
Bohr model's 4 assumptions - ANSWER-1. A single electron of
negative charge electron orbits the nucleus of positive charge
electron
2. Only certain size orbits are allowed
3. Whenin one of its allowed orbits, the electron emit no radiation
4. When an electron changes from a high-energy orbit to a lower-
energy orbit, the excess energy is emitted as a photon
The superposition of waves can produce - ANSWER-
Reinforcement
Cancellation
Partial cancellation
The superposition identical waves affect - ANSWER-Amplitude
X(t)=Asin(...)
,2|Page
The wave-particle duality applies to - ANSWER-Photons
Electrons
Protons
After passing through double slits, electrons make a pattern on a
screen that - ANSWER-resembles a pattern that waves make
You and a friend can share the same space and time
measurements when - ANSWER-You are side-by-side at rest OR
You both are side-by-side moving at constant velocity
Special relativity - ANSWER-Inertial frame of reference
Inertial - ANSWER-Not accelerating
Objects moving at relativistic speeds appear to observers at rest
to be - ANSWER-Contracted
,3|Page
To outside observers at rest, the overall sizes of objects traveling
at relativistic speeds are - ANSWER-Smaller
According to the well-known equation E = mc2, - ANSWER-mass
and energy are related
E=mc^2 - ANSWER-Mass is vast amounts of condensed energy
According to Einstein's theory of special relativity - ANSWER-
Space and time are aspects of each other
Energy and mass are aspects of each other
Heisenberg's uncertainty principle is - ANSWER-Noticeable only
for submicroscopic particles
A fundamental principle in quantum mechanisms
Predominant in the atomic domain
Quantization is electron energy states in an atom is better
understood in terms of the electron's - ANSWER-Wave nature
, 4|Page
This discrete radii and energy starts of atoms in an integral
number of - ANSWER-de Broglie wavelengths
Which radiation has no association with electric charge? -
ANSWER-Gamma
Alpha and beta particles are deflected by a magnetic field in -
ANSWER-opposite directions
Magnetic fields - ANSWER-Deflect
If gamma goes through the field, which way is he deflected? -
ANSWER-No deflection (direction)
No charge - ANSWER-No deflection
For an isotope with a half-life of two days, at the end of four days
the amount that remains is - ANSWER-One-quarter
