AP EAPCET 06-Jul-2022 Shift 2 Paper

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.