Verified Solution • 2025–26 Session
moderate
QPage 458: Q27: HC Verma: Concepts of Physics - Volume 2 The Special Theory of Relativity Page 458: Q27 Solution: What is the kinetic energy of an electron in electron volts…
⚠️ Common Exam Traps & Conceptual Pitfalls
Students frequently substitute the relativistic mass $m$ directly into the classical formula $K = \frac{1}{2}mv^2$ or incorrectly assume $K = \gamma m_0 c^2$ without subtracting the rest energy. Always use the definition $K = (\gamma - 1)m_0 c^2$ to correctly isolate the kinetic component from the total relativistic energy.
What is the kinetic energy of an electron in electron volts with mass equal to double its rest mass?
Step-by-Step Verified Solution
**Answer:** KE = 0.511 MeV.
**Step-by-Step Explanation:**
If mass = , then .
MeV.
All Questions in this Chapter
QPage 457: Q1
QPage 457: Q2
QPage 457: Q3
QPage 457: Q4
QPage 457: Q5
QPage 457: Q6
QPage 457: Q7
QPage 457: Q8
QPage 457: Q9
QPage 457: Q10
QPage 457: Q11
QPage 457: Q12
QPage 457: Q13
QPage 458: Q1
QPage 458: Q2
QPage 458: Q3
QPage 458: Q4
QPage 458: Q5
QPage 458: Q6
QPage 458: Q7
QPage 458: Q8
QPage 458: Q9
QPage 458: Q10
QPage 458: Q11
QPage 458: Q12
QPage 458: Q13
QPage 458: Q14
QPage 458: Q15
QPage 458: Q16
QPage 458: Q17
QPage 458: Q18
QPage 458: Q19
QPage 458: Q20
QPage 458: Q21
QPage 458: Q22
QPage 458: Q23
QPage 458: Q24
QPage 458: Q25
QPage 458: Q26
QPage 458: Q27
QPage 458: Q28
QPages 456-457: Q1
QPages 456-457: Q2
QPages 456-457: Q3
QPages 456-457: Q4
QPages 456-457: Q5
Related Learning Resources & Exam Preparation
Chapter Practice Bank
Practice all topic-wise questions from The Special Theory of Relativity
Reference Textbook Solutions
Explore complete chapter exercises for HC Verma: Concepts of Physics - Volume 2
Competitive PYQ Question Bank
Browse year-wise authentic previous years' questions with solutions
Authentic CBT Mock Tests
Simulate official exam environment with live timer and percentile scoring