Physics, asked by 980nanj, 1 year ago

what formula is used to find the fluctuation of the shape of the body?

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Answered by Einsteindaddy
37
The wave-interaction noise term of Einstein's formula for the fluctuations in the number of quanta received from a black-body radiator

varn=n̄1+1ehvkT−1

is verified by splitting the beam and cross correlating the photodetector noise currents. This technique eliminates the shot noise and measures the wave-interaction noise directly. Good agreement between theory and experiment is obtained when the effects of optical losses and the wavelength dependence of the optical filter are taken into account.
Answered by avisheky14
0

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