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BlackZzzverrR [31]
3 years ago
14

The SI unit of time is the second, which is defined as 9,192,631,770 cycles of radiation associated with a certain emission proc

ess in the cesium atom. Calculate the wavelength of this radiation (to three significant figures).
Chemistry
2 answers:
Vanyuwa [196]3 years ago
8 0
To calculate the wavelength of this radiation if the SI unit of time is the second, which is defined as 9,192,631,770 cycles of radiation associated with a certain emission process in the cesium atom, the wavelength is one cycle of radiation, and therefore the wavelength is 1/9192631770
Cerrena [4.2K]3 years ago
8 0

<u>Given:</u>

Radiation emission in Cs atom = 9,192,632,770 cycles

<u>To determine:</u>

The wavelength of the above radiation

<u>Explanation:</u>

It is given that :-

1 sec equivalent to 9,192, 631, 770

Now, frequency (ν) = cycles /sec = 9,192, 631, 770/sec

Wavelength of a radiation is given as:

λ = c/ν

where c = speed of light = 3*10⁸ m/s

λ = 3*10⁸ ms⁻¹/9,192, 631, 770 s⁻¹ = 0.0326 m

Ans: Thus the wavelength of this radiation is 0.033 m


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