At the penetration depth d, there will be 1% perturbation at a time gi – McqOptions

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1.	At the penetration depth d, there will be 1% perturbation at a time given by
A.	4 d²/13 α
B.	3 d²/13 α
C.	2 d²/13 α
D.	d²/13 α
Answer» E.

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