MCQ
Which of the following have highest specific charge
  • Positron
  • B
    Proton
  • C
    $He$
  • D
    None of these

Answer

Correct option: A.
Positron
a
(a)

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

The electrostatic force between the metal plates of an isolated parallel capacitor C having a charge Q and area A is:
The electrochemical equivalent of a material in an electrolyte depends on
A conductor lies along the $z-$axis $a$ $-1.5$$ \le Z < 1.5\,m$ carries a fixed current of $10.0\ A$ in $ - {\hat a_z}$ direction (see figure). For a field $\vec B$ $=$ $3.0 \times  10^{-4}$  $e^{-0.2x}$ ${\hat a_y}\,T$ find the power required to move the conductor at constant speed to $x = 2.0\ m, y = 0\ m$ in $5 \times 10^{-3}\ s$. Assume parallel motion along the $x-$axis........$ W$
Consider an electron $(m = 9.1 \times {10^{ - 31}}kg)$ confined by electrical forces to move between two rigid walls separated by $1.0 \times {10^{ - 9}}$ metre, which is about five atomic diameters. The quantised energy value for the lowest stationary state is
A parallel plate air capacitor is charged to a potential difference of V. After disconnecting the battery, distance between the plates of the capacitor is increased using an insulating handle. As a result, the potential difference between the plates
Two batteries of emf $\epsilon_1$ and $\epsilon_2\left(\epsilon_2 > \epsilon_1\right)$ and internal resistances $r_1$ and $r_2$ respectively are connected in parallel as shown in Fig.
The dependence of drift velocity on applied electric field $E$ is:
If prism angle $\alpha = 1^\circ ,\;\mu = 1.54,$distance between screen and prism $(b) = 0.7\,m,$ distance between prism and source $a = 0.3\,m,\;\lambda = 180\pi \;nm$ then in Fresnal biprism find the value of $\beta $ (fringe width)
In the Geiger$-$Marsden scattering experiment, is case of head$-$on collision the impact parameter should be:
Assertion : If the current in a solenoid is reversed in direction while keeping the same magnitude, the magnetic field energy stored in the solenoid remains unchanged.

Reason : Magnetic field energy density is proportional to the magnetic field.