1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
Explanation:
While executing SHM, from relation,
\(\begin{aligned}& v=\omega \sqrt{A^{2}-x^{2}} \text { or } v^{2}=\omega^{2}\left(A^{2}-x^{2}\right) \\& v^{2}=\omega^{2} A^{2}-\omega^{2} x^{2}\end{aligned}\)
Dividing both side by \(\omega^{2} A^{2}\)
\(\frac{{{v^2}}}{{{\omega ^2}{A^2}}} + \frac{{{x^2}}}{{{A^2}}} = 1\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,(1)\)
Eq. (1) represent the equation of an ellipse. InSHM, the velocity does not change uniformly. So option (4) is correct.