Question

what is bulk modulus​

Answer 1

Answer:

Bulk modulus

Explanation:

Bulk modulus , numerically constant that describes the elastic properties of a solid or fluid when it is under pressure on all surfaces . The applied pressure reduced the volume of a material , which returns to its original volume when the pressure is removed.

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Answer 2

$\huge\textsf{Bulk\: Modulus}$

$\huge{→}$Within elastic limit the ratio of the volume stress and the strain is called Bulk Modulus of Elasticity.

$\huge{→}$ It is represented by K or B

It's formula is :-

$\large{\boxed{\sf K\:or\:B=\frac{Volume\:Stress}{Volume\:Strain}}}$

$\large\implies{\sf B=\frac{F/A}{-\triangle V/V}}$

$\large{\boxed{\sf B=\frac{\triangle P}{\triangle V/V} }}$

$\huge{→}$ The minus sign indicates a decrease in Volume with an increase in stress.

Unit of B :- $\sf{Nm^{-2}\:or\:pascal}$