Which of the following is in the increasing order for penetrating power
Which of the following is in the increasing order for penetrating power
- [IIT 1994]
- A
$\alpha ,\;\beta ,\;\gamma $
- B
$\beta ,\;\alpha ,\;\gamma $
- C
$\gamma ,\;\alpha ,\;\beta $
- D
$\gamma ,\;\beta ,\;\alpha $
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- [JEE MAIN 2020]
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