MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Characteristics of Bohr's Atomic Model

Double ionise...

Question

Double ionised helium atom and hydrogen ions are accelerated from rest , through the same potential difference . The ratio of final velocity of helium and hydrogen is
Correct option is 1:2^-1/2

Open in App

Solution

mv² = eV, or, V = (2eV/m)^1/2

the mass of helium ion is four times that of hydrogen ion.

Further, the charge on helium ion is twice that of hydrogen ion.

v_He/v_H = sqrt 2

Suggest Corrections

thumbs-up

3

Similar questions

Q. Doubly ionised Helium atoms and Hydrogen ions are accelerated from rest through the same potential drop. The ratio of the final velocities of the Helium and the Hydrogen ions is

Q. A hydrogen ion and a singly ionized helium atom are accelerated, from rest, through the same potential difference. The ratio of final speeds of hydrogen and helium ions is close to:

Q. A helium ion and a Hydrogen ion are accelerated from rest through a potential difference of V to velocities of

v H_{e}

and vH respectively. If the helium ion loses one electron, what will be the ratio of

v H_{e}

Q. A doubly ionised helium ion and a

H_{2}

ion are accelerated through the same potential. The ratio of the speed of helium and

H_{2}

Q. A helium ion and a hydrogen ion are accelerated from rest through a potential difference of

V

v_{H e}

v_{H}

respectively. If helium has lost one electron, the ratio of

v_{H e} / v_{H}

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Characteristics of Bohr's Model

PHYSICS

Watch in App

explore_more_icon

Explore more

Characteristics of Bohr's Atomic Model

Standard XII Physics

Join BYJU'S Learning Program

CrossIcon