1.

The excess of pressure inside a soap bubble than that of the outer pressure is [MP PMT 1989; BHU 1995; MH CET 2002; RPET 2003; AMU (Engg.) 2000]

A.             \[\frac{2T}{r}\]          
B.             \[\frac{4T}{r}\]
C.             \[\frac{T}{2r}\]          
D.             \[\frac{T}{r}\]
Answer» C.             \[\frac{T}{2r}\]          


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