First slide

Elastic Modulie

Question

A spherical ball contracts in volume by 0.02% when subjected to a pressure of 100 atmosphere. Assuming one atmosphere = 10⁵ Nm^{- 2}, the bulk modulus of the material of the ball is

Easy

A

0.02x10⁵N/m²
B

0.02x10⁷N/m²
C

50 x 10⁷N/m²
D

50 x l0⁹N/m²

Solution

$\begin{array}{l} B = \frac{P}{(V / V)} \\ = \frac{10^{5}}{(0 \cdot 02 / 100)} = 50 \times 10^{9} N / m^{2} \end{array}$

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