MCQ
Which of the following particles will experience maximum magnetic force circle when projected with the same velocity perpendicular to a magnetic field?
  • A
    Electron
  • B
    Proton
  • C
    $He ^{+}$
  • $Li ^{++}$

Answer

Correct option: D.
$Li ^{++}$

$|\text{F}|=|\text{qVB}|$
charge of $Li ^{++}>$charge of $\left( He ^{+}\right.$, proton, electron $)$

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

Similar questions

A far sighted man who has lost his spectacles, reads a book by looking through a small hole (3-4 mm) in a sheet of paper. The reason will be
In an electromagnetic wave in free space the root mean square value of the electric field is $E_{rms} = 6\, V m^{-1}$ The peak value of the magnetic field is
The strength of the magnetic field in which the magnet of a vibration magnetometer is oscillating is increased 4 times its original value. The frequency of oscillation would then become
Dip angle in vertical plane at an angle ${\cos ^{ - 1}}\,\left( {\frac{1}{{\sqrt 2 }}} \right)$ from magnetic meridian is $60^o$, then actual dip at that place
A uniform wire is bent in the form of a circle of radius R. A current I enters at A and leaves at C as shown in the figure :
If the length ABC is half of the length ADC, the magnetic field at the centre O will be
Assertion : If three identical bulbs are connected in series as shown in figure then on closing the switches. Bulb C short circuited and hence illumination of bulbs A and B decreases.






Reason : Voltage on A and B decreases
In an endothermic reaction the binding energies of reactants and products are $e_1 , e_2$​ respectively, then:
As shown in figure, a cuboid lies in a region with electric field $E=2 x^2 \hat{i}-4 y \hat{j}+6 \hat{k} \quad N / C$. The magnitude of charge within the cuboid is $n \varepsilon_0 C$. The value of $n$ is $............$ (if dimension of cuboid is $1 \times 2 \times 3 \;m ^3$ )
The work functions for sodium and copper are 2eV and 4eV. Which of them is suitable for a photocell with 4000 Å light
The stopping potential for electrons emitted from a photosensitive surface illuminated by light of wavelength $491\, nm$ is $0.710\, V$. When the incident wavelength is changed to a new value, the stopping potential is $1.43\, V$. The new wavelength is ....... $nm.$