QJEEM23Phd264: JEE Main 2023 Physics - Class 11 JEEM23Phd264 Solution: A vector in plane makes an angle of with -axis. The magnitude…

Question

Verified Solution • 2025–26 Session moderate

A vector in

x-y

plane makes an angle of

30^{\circ}

with

y

-axis. The magnitude of

\mathrm{y}

-component of vector is

2 \sqrt{3}

. The magnitude of

x

-component of the vector will be :

Accepted Answer

\begin{aligned}&amp; \mathrm{A}_{\mathrm{y}}=\mathrm{A} \cos 30^{\circ}=2 \sqrt{3} \\\\&amp; \Rightarrow \mathrm{A} \frac{\sqrt{3}}{2}=2 \sqrt{3} \\\\&amp; \Rightarrow \mathrm{A}=4\end{aligned}

Now

A_x=A \sin 30^{\circ}=4 \times \frac{1}{2}=2

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