Question:-
Which one of the following is the bulk modulus K of a fluid? (Symbols have the usual meaning)
Option (A)
r(dP/dr)
Option (B)
(dP/rdr)
Option(C)
(Pdr/dP)
Option(D)
(dr/rdP)
Correct Option:
(A)
Question Solution:
Bulk modulus
K = - (dp/(dv/V)) and V = 1/p
\ K = - [dp / {(-dp/p2)/(1/p)}]
\ dv = - (dp/p2)
K = (pdp/dp)
question-answer-faq-5916