
#1
Dec706, 03:04 PM

P: 83

1. The problem statement, all variables and given/known data
sky tv is broadcast from a satellite in orbit at an altitude of 35600km. By considering the defference between the satellite and the surface of the earth , find the frequency shift of a 1GHz signal broadcast to the earth. (i have been given radius and mass of the earth. 2. Relevant equations g=Gm/r^2, f(observed)=f(emit){1 +/ gh/c^2} 3. The attempt at a solution find g f(emitted)=1GHz how do i calculate f(observed)? 



#2
Dec706, 05:11 PM

P: 5

(G*M) / (r * c^2) = (wo  we) / we
"wo" is the wavelength of the photon as measured by a distant observer. "we" is the wavelength of the photon when measured at the source of emission. and "r" is distance w = c / f (c=speed of light)  Pooya Afaghi 


Register to reply 
Related Discussions  
Effect of frequency & Intensity on number of photons  Advanced Physics Homework  3  
Photoelectric Effect, Threshold Frequency etc.  Introductory Physics Homework  1  
Doppler Effect and frequency  General Physics  3  
The effect of temperature on frequency  Introductory Physics Homework  9  
Threshold Frequency: PE effect  General Physics  5 