- #1
ARAVIND113122
- 54
- 0
does doppler effect affect ENERGY of photon??
i have tried to make the question as clear as possible,but in the process,have made it a bit too long. i request you to be patient-
suppose a source is emitting a photon after equal intervals of time.an observer,who was initially at rest w.r.t the source,starts to move away from it.this would increase the time interval after which the photon reaches the observer.this means that the frequency of photons reaching the observer decreases,i.e,the apparent wavelength of light increases.
now,energy of a photon is given by e=h√.
suppose the photons emitted by the source have frequency corresponding to that of blue light.when the observer starts to move away,the light,according to the observer,would seem to have shifted towards the red end of the spectrum .
am i right in saying that although the actual frequency of each individual photon[which gives it its energy] remains the same,the frequency PERCEIVED by the human eye decreases?to be more specific,i want to know if the human eye perceives colour based on the INTRINSIC frequency of a photon,or the frequency with which successive photons hit the eye.
if the latter is true,then it wouldn't it mean that an EM wave of ANY frequency can be perceived as that of ANY OTHER frequency by the eye[despite having different energies according to their ACTUAL frequencies{given by E=h√}],depending on the motion of the source w.r.t the source?
or does doppler effect affect the initial frequency of the photon?if so,how?
is the answer a combination of different factors?if yes,how?
i have tried to make the question as clear as possible,but in the process,have made it a bit too long. i request you to be patient-
suppose a source is emitting a photon after equal intervals of time.an observer,who was initially at rest w.r.t the source,starts to move away from it.this would increase the time interval after which the photon reaches the observer.this means that the frequency of photons reaching the observer decreases,i.e,the apparent wavelength of light increases.
now,energy of a photon is given by e=h√.
suppose the photons emitted by the source have frequency corresponding to that of blue light.when the observer starts to move away,the light,according to the observer,would seem to have shifted towards the red end of the spectrum .
am i right in saying that although the actual frequency of each individual photon[which gives it its energy] remains the same,the frequency PERCEIVED by the human eye decreases?to be more specific,i want to know if the human eye perceives colour based on the INTRINSIC frequency of a photon,or the frequency with which successive photons hit the eye.
if the latter is true,then it wouldn't it mean that an EM wave of ANY frequency can be perceived as that of ANY OTHER frequency by the eye[despite having different energies according to their ACTUAL frequencies{given by E=h√}],depending on the motion of the source w.r.t the source?
or does doppler effect affect the initial frequency of the photon?if so,how?
is the answer a combination of different factors?if yes,how?