The period T of a soap bubble under SHM is given by T=PaDbSc, where P is pressure, D, is density and S is surface tension. Then the values of a,b and c are
−32,12,1
−1,−2,3
13,−32,−1/2
1,2,32
The correct Answer is:A
(1) T=PaDbSc
T=[ML−1T−2]a[ML−3]b[MT−2]c
M0L0T−1=Ma+b+cL−a−3bT−2a−2c
a+b+c=0
−a−3b=0
−2a−2c=1⇒a+c=−12
b=12,a=−32,c=1
a=−32,b=12,c=1
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