Question

A star emits light of wavelength equation and recedes from Earth at speed 0.50c. Calculate the observed wavelength. 

19 Jan 2026
Answer :
Word Count : 114
The observed wavelength of light from a receding source is given by the relativistic Doppler formula: [ \lambda_{\text{obs}} = \lambda_{\text{em}} \sqrt{\frac{1 + \beta}{1 - \beta}} ] where (\beta _______ ________ ___ ___ __________ __________.
_____ ____ ______ __________ _________ ________.
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_________ _______ ______ ______ ____ ____.
_______ __________ ___ _______ _______ __________ _____ ______ _____ ________.
___ ________ ________ _________ _________ ____ ____ ______ _______ _______ ________ _________.
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_________ ___ _____ ______ ______ ______ ___ ____ ______ _________ ____ __________.
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______.
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