Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app

JIPMER 2006

Exam: JIPMER
Year: 2006
Subject: Physics
Chapter: Electrostatics

JIPMER 2006 · Physics · Electrostatics

Two similar charges having mass m and 2 m are placed in an electric...

Two similar charges having mass

m

and

2 m

are placed in an electric field. The ratio of their kinetic energy is :

Options

A $4: 1$
B $1: 1$
C $2: 1$
D $1: 2$

Correct answer

C. $2: 1$

Step-by-step solution

Force on charged particle is electric field

F=q E \therefore

Acceleration

a=\frac{F}{m}=\frac{q E}{m} \therefore

Velocity

\begin{aligned} v & =u+a t \\ & =0+\frac{q E}{m} t\end{aligned}

So, kinetic energy

\begin{aligned} & =\frac{\frac{1}{2} m_1\left(\frac{q E}{m_1} t\right)^2}{\frac{1}{2} m_2\left(\frac{q E}{m_2} t\right)^2} \\ & =\frac{m_2}{m_1}=\frac{2 m}{m} \\ & =\frac{2}{1} \\ & =2: 1\end{aligned}

Practice Electrostatics on Quantrex Academy →

More from Electrostatics

The electric field at a point in a certain region of free space due to a charge Q is 0.… MHT CET Medical 2026 A closed surface encloses n electric dipoles. The net electric flux through the closed… MHT CET Medical 2026 A hollow metal sphere of radius 5\ cm is charged such that the potential on its surface… MHT CET Medical 2026 Four infinitely large planar charged sheets are placed parallel to each other as shown in… MHT CET Medical 2026 The electric potential 'V' as a function of distance x (in metre) is V = 4x^2 + 6x - 8… MHT CET Medical 2026 A uniform electric field is given as E = 4 × 10^4\, j \ N/C . The flux of this field… MHT CET Medical 2026 Assume that the electric field E = 30 x^2 i exists in space. Then the potential… MHT CET Medical 2026 Two point charges +8q and -2q are located at x=0 and x=L respectively. What is the… MHT CET Medical 2026 Full Electrostatics list All JIPMER PYQs