Exams › NEET › Physics

The bulk modulus of a spherical object is 'B'. If it is subjected to uniform pressure 'p', the fractional decrease in radius is

1. B / 3p
2. 3p / B
3. p / 3B
4. p / B

Correct answer: p / 3B

Solution

The bulk modulus (B) is defined as the ratio of pressure (p) to the volumetric strain. For a sphere, the fractional decrease in radius is one-third of the volumetric strain, leading to the result p / 3B.

Related NEET Physics questions

• Assertion (A): Ductile metals are used to prepare thin wires. Reason (R) : In the stress-strain curve of ductile metals, the length between the points representing elastic limit and breaking point is very small.
• To determine the Young modulus of a wire, several measurements are taken. In which row can the measurement not be taken directly with the stated apparatus?
• The property to restore the natural shape or to oppose the deformation is called:
• Assertion For small deformations, the stress and strain are proportional to each other Reason A class of solids called elastomers does not obey Hooke's law.
• A metal cube of side \( 10 \mathrm{cm} \) is subjected to a shearing stress of \( 10^{4} N m^{-2} \). The modulus of rigidity if the top of the cube is displaced by \( 0.05 \mathrm{cm} \) with respect to its bottom is
• A metal wire upon excess stress moves to a region of permanent set. Before yielding to the fracture stress, it undergoes an extension equal to twice its length in its plastic region. The nature of the metal is

⚔️ Practice NEET Physics free + battle 1v1 →