Practice question
Question
A glass slab of volume 0.02m3 is subjected to a hydraulic pressure of 3×106N/m2. If the bulk modulus of glass is 3.7×1010N/m2, what is the fractional change in volume?
Explanation
Bulk modulus: B = −pΔVV. Rearrange: ΔVV = −pB = −3×1063.7×1010≈−8.11×10−5. Magnitude: 8.11×10−5. As per NCERT, applying relevant law/formula with correct units and sign convention leads to 8.11×10−5. This satisfies dimensional consistency and physical conditions given, so option D is scientifically correct.
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