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PART - 1 CH - 3 Motion in a Plane — Physics STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 SciencePhysicsPART - 1 CH - 3 Motion in a Plane5 Marks
Question
Column - AColumn - B
1. Position vector of a particle located at point $P$ is
$\vec{r}=x \hat{i}+y \hat{j}+z \hat{k}$
the resultant of this $|\vec{r}|=$		(A) $45^{\circ}$
2. A vector can be expressed as the product of its magnitude and unit vectorthen $\vec{A}=$(B) $\sqrt{x^2+y^2+z^2}$
3. When $\vec{P}$ and $\vec{Q}$ are in opposite directions then magnitude of $\vec{R} \ldots$.(C) 1
4. The sum of squares of all three direction cosines of a vector is always,(D) $\hat{n}|\overrightarrow{A}|$
5. The value of $\theta$ for maximum range in $R =\frac{u^2 \sin 2 \theta}{g}$ should be(E) Minimum
✓

Answer

1 (b), 2 (d), 3 (e), 4 (c), 5 (a)

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