The angle between vectors (A B) and (B A) is - Vidyadip

MCQ

The angle between vectors $(\vec{A} \times \vec{B})$ and $(\vec{B} \times \vec{A})$ is

A
Zero
✓
$\pi$
C
$\pi / 4$
D
$\pi / 2$

✓

Answer

Correct option: B.

$\pi$

(b) $\vec{A} \times \vec{B}$ and $\vec{B} \times \vec{A}$ are parallel and opposite to each other. So the angle will be $\pi$.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "MCQ" from Vector→Vector — all question types→JEE physics STD 12 Science question papers→CBSE Board STD 12 Science question papers→CBSE Board question paper generator→

Similar questions

What displacement must be added to the displacement $25 \hat{i}-6 \hat{j} m$ to give a displacement of $7.0 m$ pointing in the $x$ direction

If $P$ represents radiation pressure, $c$ represents speed of light and $Q$ represents radiation energy striking a unit area per second, then non-zero integers $x, y$ and $z$ such that $P^x Q^y c^z$ is dimensionless, are

A moving coil galvanometer has $48$ $turns$ and area of coil is $4 \times {10^{ - 2}}\,{m^2}.$ If the magnetic field is $0.2\, T$, then to increase the current sensitivity by $25\%$ without changing area $(A)$ and field $(B)$ the number of turns should become

When two capillary tubes of different diameters are dipped vertically, the rise of the liquid is

Which physical quantities have the same dimension

Doppler shift in frequency does not depend upon

If heat given to a system is $6 \mathrm{kcal}$ and work done is $6 \mathrm{~kJ}$. Then change in internal energy is

Which state of triply ionised Baryllium $\left(B e^{+++}\right)$has the same orbital radius as that of the ground state of hydrogen

How much work is required to carry a $6 \mu \mathrm{C}$ charge from the negative terminal to the positive terminal of a $9 V$ battery

Which one of the following statements regarding artificial satellite of the earth is incorrect