MCQ
Two parallel beams of electrons moving in the same direction produce a mutual force
- AOf attraction in plane of paper
- ✓Of repulsion in plane of paper
- CUpwards perpendicular to plane of paper
- DDownwards perpendicular to plane of paper
✓
Answer
Correct option: B.
Of repulsion in plane of paper
b
Two beams of electron moving parallel to each other in the same direction will repel each other in the plane of the paper.
Two beams of electron moving parallel to each other in the same direction will repel each other in the plane of the paper.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
In a radioactive decay process , the negatively charged emitted $\beta -$ particles are
→A satellite is launched into a circular orbit of radius $R$ around the earth. A second satellite is launched into an orbit of radius $(1.01)R$. The period of the second satellite is larger than that of the first one by approximately ........... $\%$
→If $r_1$ and $r_2$ are the radii of the atomic nuclei of mass number $64$ and $125$ respectively, then the ratio $(r_1/r_2)$ is
→A uniform chain of length $3\, meter$ and mass $3\, {kg}$ overhangs a smooth table with $2\, meter$ laying on the table. If $k$ is the kinetic energy of the chain in joule as it completely slips off the table, then the value of ${k}$ is (Take $\left.g=10\, {m} / {s}^{2}\right)$
→The refractive index of a material of a prism of angles $45^o -45^o -90^o $ is $1.5.$ The path of the ray of light incident normally on the hypotenuse side is shown in
→The resistance of $1\, A$ ammeter is $0.018\,\Omega $. To convert it into $10\, A$ ammeter, the shunt resistance required will be
→In the circuit diagram shown in the adjoining figure, the resultant capacitance between $P$ and $Q$ is........$\mu F$
→A diverging lens with magnitude of focal length $25\ cm$ is placed at a distance of $15\ cm$ from a converging lens of magnitude of focal length $20\ cm$. A beam of parallel light falls on the diverging lens. The final image formed is
→If a vector $2\hat i + 3\hat j + 8\hat k$ is perpendicular to the vector $4\hat j - 4\hat i + \alpha \hat k$. Then the value of $\alpha $ is
→As shown in the figure, the voltmeter reads $2\,V$ across $5\,\Omega$ resistor. The resistance of the voltmeter is $.......\,\Omega$.
→