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#1 2017-02-23 04:58:28

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بِسمِ اللَّهِ الرَّحمٰنِ الرَّحيمِ
From: Sahiwal Division
Registered: 2012-03-22
Posts: 22,147

Physics Aptitude Test Quiz Question.

Aptitude Quizzes Physics Aptitude Test

A second is the duration of .‘192631 770 periods of radiation corresponding to the transition between two hyperfine levels of the ground state of?

Option A):
Cadium-133 atom
Option B):
Cesium-133 atom
Option C):
Sodium-134 atom
Option D):
Calcium-i 33 atom

Correct Answer is Option B):
Cesium-133 atom

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2017-02-23 04:58:28

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