Question
Distinguish between Young’s modulus, bulk modulus and modulus of rigidity.
| No | Young’s modulus | Bulk modulus | Modulus of rigidity |
| i. | It is the ratio of longitudinal stress to longitudinal strain. | It is the ratio of volume stress to volume strain. | It is the ratio of shearing stress to shearing strain. |
| ii. | <p>It is given by, $Y =\frac{ MgL }{\pi r ^2 l}$</p> | <p>It is given by, $K =\frac{V d P}{d V}$</p> | <p>It is given by,<br />$<br />\eta=\frac{F}{A \theta}<br />$</p> |
| iii. | It exists in solids. | It exists in solid, liquid and gases. | It exists in solids. |
| iv. | It relates to change inlength of a body. | It relates to change in volume of a body. | It relates to change in shape of a body. |
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