Which conditions are mandatory to get satisfied for the formation of a – McqOptions

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1.	Which conditions are mandatory to get satisfied for the formation of a sphere ? (Marks : 01)
A.	0 , 0 2 & r = constant
B.	= change , r = change & = constant
C.	r , 0 2 & = constant
D.	, 0 2 & r= constant
Answer» B. = change , r = change & = constant

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