Question
In which of the following fields cathode rays show minimum deflection?
✓
Answer
- Gravitational field
Gravitational field applies minimum force on cathode rays because gravitational forces are proportional to masses but not charges.
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 beryllium atom, if $a_0$ be the radius of the first orbit, then the radius of the second orbit will be in general
→The net electric flux through a closed surface is:
A particle $A$ has charge $+q$ and a particle $B$ has charge $+4 q$ with each of them having the same mass $m$. When allowed to fall from rest through the same electric potential difference, the ratio of their speed $\frac{ v _{ A }}{ v _{ B }}$ jill become
→The photo-electrons emitted from a surface of sodium metal are such that (a) They all are of the same frequency(b) They have the same kinetic energy(c) They have the same de Broglie wavelength(d) They have their speeds varying from zero to a certain maximum
Assertion : A charged capacitor is disconnected from a battery. Now if its plate are separated farther, the potential energy will fall.
Reason : Energy stored in a capacitor is equal to the work done in charging it.(a) If both assertion and reason are true and the reason is the correct explanation of the assertion.(b) If both assertion and reason are true but reason is not the correct explanation of the assertion.(c) If assertion is true but reason is false.(d) If assertion is false but reason is true.
Reason : Energy stored in a capacitor is equal to the work done in charging it.(a) If both assertion and reason are true and the reason is the correct explanation of the assertion.(b) If both assertion and reason are true but reason is not the correct explanation of the assertion.(c) If assertion is true but reason is false.(d) If assertion is false but reason is true.
A beam consisting of protons and electrons moving at the same speed goes through a thin region in which there is a magnetic field perpendicular to the beam. The protons and the electrons:
$a.$ Will go undeviated.
$b.$ Will be deviated by the same angle and will not separate.
$c.$ Will be deviated by different angles and hence separate.
$d.$ Will be deviated by the same angle but will separate.
→$a.$ Will go undeviated.
$b.$ Will be deviated by the same angle and will not separate.
$c.$ Will be deviated by different angles and hence separate.
$d.$ Will be deviated by the same angle but will separate.
Electric field intensity at a point in between two parallel sheets with like charges of same surface charge densities $(\sigma)$ is
→Each plate of a parallel plate capacitor has a charge q on it. The capacitor is now connected to a batter. Now:
Consider the situation of the previous problem. The directions of the magnetic field due to the dipole are opposite at:
In the given circuit, it is observed that the current $I$ is independent of the value of the resistance $R_6.$ Then the resistance values must satisfy
→