An object in space is initially stationary relative to the Earth. Then, a force begins acting on the object, starting with a for
1 answer:
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(a)
The relationship between frequency and wavelength of an electromagnetic wave is given by
where
is the speed of light
is the frequency
is the wavelength
In this problem, we are considering light with wavelength of
Substituting into the equation and re-arranging it, we can find the corresponding frequency:
(b)
The period of a wave is equal to the reciprocal of the frequency:
And using as we found in the previous part, we can find the period of this wave: