Download App

Physics and Mathematics — Physics STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 SciencePhysicsPhysics and Mathematics2 Marks
Question
Let $\vec{\text{A}}=3\vec{\text{i}}+4\vec{\text{j}}.$ Write four vector $\overrightarrow{\text{B}}$ such that $\overrightarrow{\text{A}}\neq\overrightarrow{\text{B}}$ but A = B.
✓

Answer

This vector A has a magnitude = 5
so take a vector $\overrightarrow{\text{B}}=5\cos\theta\hat{\text{i}}+5\sin\theta\hat{\text{j}}$
Start putting different values of $\theta$ in the above vector you can get as many vector as you want satisfying the condition $\text{A}\neq\text{B}$ but A = B.

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 "2 Marks Questions" from Physics and Mathematics→Physics and Mathematics — all question types→Physics STD 11 Science question papers→Gujarat Board STD 11 Science question papers→Gujarat Board question paper generator→

Similar questions

Why are soldiers marching in unison asked to break up step (walk like a normal person) while crossing the bridge?
→
A spectroscopic instrument can resolve two nearby wavelengths $\lambda$ and $\lambda+\Delta\lambda$ if $\frac{\lambda}{\Delta\lambda}$ is smaller than 8000. This is used to study the spectral lines of the Balmer series of hydrogen. Approximately how many lines will be resolved by the instrument?
→
In some old texts it is mentioned that $4\pi$ lines of force originate from each unit positive charge. Comment on the statement in view of the fact that $4\pi$ is not an integer.
→
A body of mass m is placed on a table. The earth is pulling the body with a force mg. Taking this force to be the action what is the reaction?
→
A planet moving around the sun is a good illustration of the law of conservation of energy. Explain.
→
What should be the maximum average velocity of water in a tube of diameter $2cm$ so that flow is laminar? The viscosity of water is $0.001Nm^{-2}s$.
→
Explain why (or how):
in a sound wave, a displacement node is a pressure antinode and vice versa,
→
If the choice of origin is shifted, what is the change in $(i)$ Gravitational potential $(ii)$ Potential energy?
→
The minimum deviations suffered by red, yellow and violet beams passing through an equilateral transparent prism are 38.4°, 38.7° and 39.2° respectively. Calculate the dispersive power of the medium.
→
Calculate the percentage increase in length of a wire of diameter 2.5mm stretched by a force of 100kg weight. Young's modulus of elasticity of wire is $12.5 \times 10^{11}$ dyne/ sq cm.
→