1.

The surface are of the particle, is given as ____?

A. πd<sup>2</sup>s
B. Φd<sup>2</sup>s
C. πV<sup>2</sup>s
D. πP<sup>2</sup>s
Answer» B. ‚âà√≠¬¨‚àÇd<sup>2</sup>s


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