For an ideal liquid, the bulk modulus, is infinite and shear modulus is zero. Hence, statement (A) is correct. In statement (B), Bulk modulus B=140GPa =140×109Pa =1.4×1011Pa p=7×106Pa V=a3=(0.1)3 [a=10cm=0.1m] =0.001m3 since, B=
p
(
−∆V
V
)
⇒1.4×1011=
7×106
−∆V
0.001
⇒1.4×1011=
7×103
−∆V
⇒∆V=−
7×103
1.4×1011
=−5×10−8m3 Hence, statement (B) is incorrect. Strain produced in spiral spring stretched by a weight attached to it, is tensile. Hence, statement (C) is correct.
