Question

If two waves $\left(y_1\right)$ and $\left(y_2\right)$ traverse in a medium, then the resultant displacement at a point in the medium is given by :

• A. $y_1-y_2$
• B. $y_1+y_2$
• C. $y_1\times y_2$
• D. $\frac{y_1}{y_2}$

Answer 1

The correct option is B $y_1+y_2$

From the superposition principle, the resultant displacement of the two waves with displacements as $\left(y_1\right)$ and $\left(y_2\right)$ at a point in the medium is given by-
$y_R=y_1+y_2$