Question

calculate the speed of an object that emmits a wavelenght of 650nm and a sensor percieves...

calculate the speed of an object that emmits a wavelenght of 650nm and a sensor percieves 450nm .

a 0.305c redshift
b 0.35c blueshift
c 0.305c blueshift
d 0.35c redshift

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Answer #1

Wavelength of source is

New wave length

Change in wavelength

We know that

Where

v= velocity of object

C= velocity of light

Near equal to 0.305c

And the wavelength become shorter so the object moves away so it is a blueshift

C. 0.305 blueshift

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