MCQ
Acharged particle enters a uniform magnetic field perpendicular to its initial direction travelling in air. The path of the particle is seen to follow the path in figure. Which of statements $1-3$ is/are correct?

$[1]$ The magnetic field strength may have been increased while the particle was travelling in air

$[2]$ The particle lost energy by ionising the air

$[3]$ The particle lost charge by ionising the air

  • A
    $1, 2, 3$ are correct
  • $1, 2$ only are correct
  • C
    $2, 3$ only are correct
  • D
    $1$ only

Answer

Correct option: B.
$1, 2$ only are correct
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

Similar questions

Which of the following is the radio$-$isotope?
$^{39}_{19}{\text{K}}$​, $^{40}_{19}{\text{K}}$
A bar magnet of magnetic moment $3.0\, A-m^2$ is placed in a uniform magnetic induction field of $2 \times 10^{-5}\, T$. If each pole of the magnet experiences a force of $6 \times 10^{-4} \,N$, the length of the magnet is.....$m$
A rectangular coil $ABCD$ is rotated in uniform magnetic field with constant angular velocity about its one of the diameter as shown in figure.The induced $emf$ will be maximum, when the plane of the coil is
The magnetic moment of a current carrying loop is $2.1 \times 10^{-25} \mathrm{amp} \times \mathrm{m}^2$. The magnetic field at a point on its axis at a distance of 1 $A^0$ is
The voltage across a pure inductor is represented by the following diagram. Which of the following diagram will represent the current
The maximum wavelength of radiation that can produce photoelectric effect in a certain metal is $200 nm$. The maximum kinetic energy acquired by electron due to radiation of wavelength $100 nm$ will be .............. $eV$
The figure represents the observed intensity of $X-$ rays emitted by an $X-$ ray tube as a function of wavelength. The sharp peaks $A$ and $B$ denote
The combination of the gates shown in the figure below produces
A pencil dipped partially in water appears bent because of:
A plano convex lens is made of glass of refractive index $1.5$. The radius of curvature of its convex surface is $R$. Its focal length is