STANDARD Physics Bulk Modulus MCQ Question
A sphere contracts in volume by 0.01%, when taken to the bottom of sea 1 km deep. The bulk modulus of the material of the sphere is (Given density of sea water may be taken as 1.0 × 10³ kg m⁻³)
4.9 × 10¹⁰ N m⁻²
9.8 × 10¹⁰ N m⁻²
4.9 × 10⁹ N m⁻²
9.8 × 10⁹ N m⁻²
Correct Answer
Detailed Explanation
The pressure at the bottom of the sea is calculated using P = hρg. The bulk modulus B is then calculated using the formula B = P / (ΔV/V). The correct calculation gives B = 9.8 × 10¹⁰ N m⁻².
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