AP EAMCET · PHYSICS · Mechanical Properties of Solids

What is the pressure required to reduce the given volume of water by $1 %$ ? (Bulk modulus $(K) = 2 \times 10^{8} N m^{- 2}$ )

A $2 \times 10^{5} N m^{- 2}$
B $2 \times 10^{6} N m^{- 2}$
C $2 \times 10^{7} N m^{- 2}$
D $2 \times 10^{8} N m^{- 2}$

Verified Solution

Answer & Solution

Correct Answer

(B) $2 \times 10^{6} N m^{- 2}$

Step-by-step Solution

Detailed explanation

Given that Bulk modulus K=2×108 N m-2 Volume change ∆vv=1% Bulk modulus is given by k=p∆vv ⇒p=k∆vv⇒p=2×1080.01=2×106

Apply the relevant identity from the chapter and substitute the values established in the previous step, keeping the original constraint in view.

Use the simplified expression to isolate the unknown, then plug the result back into the question setup to confirm the working is internally consistent.

Cross-check against a boundary or limiting case. Both the dimensional balance and the qualitative behaviour at the extreme should agree with the candidate answer.

Combine the steps above to identify the correct option. The remaining choices each fail at least one of the consistency, dimensional, or boundary checks.

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What is the pressure required to reduce the given volume of water by 1% ? (Bulk modulus K=2×108 N m-2)

Step-by-step Solution

What is the pressure required to reduce the given volume of water by $1 %$ ? (Bulk modulus $(K) = 2 \times 10^{8} N m^{- 2}$ )