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The first ionization energy of caesium i...

The first ionization energy of caesium is `6.24 xx 10^(-19)J//"atom"` . What is the minimum frequency of light that is required to ionize a caesium atom ?

A

`1.06 xx 10^(-15)s^(-1)`

B

`4.13 xx 10^(14) s^(-1)`

C

`9.42 xx 10^(14) s^(-1)`

D

`1.60 xx 10^(18) s^(-1)`

Text Solution

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The correct Answer is:
C
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