Browse by Stream
QnA
Home
QnA
Go To Your Study Dashboard

Get Answers to all your Questions

header-bg qa
  • Home
  • Engineering
  • Hydrogen ion and 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 : Option: 1

Hydrogen ion and 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 :
Option: 1 1:2
Option: 2 10:7
Option: 3 2:1
Option: 4 5:7

Answers (1)

best_answer

\begin{aligned} &K.E=q V\\ &K.E=\frac{1}{2} m v^{2}=q V\\ &\Rightarrow \quad v=\sqrt{\frac{2 q V}{m}}\\& \text{As Voltage (V) is same for both} \\ & v \propto \sqrt{\frac{q}{m}} \\ &\Rightarrow \frac{v_{H}}{v_{\text {He }}}=\frac{\sqrt{\frac{e}{m}}}{\sqrt{\frac{e}{4 m}}}=\frac{2}{1} \end{aligned}

Posted by

avinash.dongre

View full answer

JEE Main high-scoring chapters and topics

Study 40% syllabus and score up to 100% marks in JEE

Similar Questions

Trending Articles/News

anam-khan

JEE Main 2024 session 2 result date announced; Steps to check NTA session 2 scores
anam-khan

JEE Main 2024 session 2 final answer key soon at jeemain.nta.ac.in; result on April 25
anam-khan

JEE Main 2024 Session 2: Last day to challenge answer key today

Latest Question