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QPage 457: Q2: HC Verma: Concepts of Physics - Volume 2 The Special Theory of Relativity Page 457: Q2 Solution: As the speed of a particle increases, its rest mass…

⚠️ Common Exam Traps & Conceptual Pitfalls

Students often confuse the invariant rest mass ($m_0$), which is constant, with the relativistic mass ($m = \gamma m_0$), which increases with speed. Always distinguish between these two definitions to avoid incorrectly selecting options that imply mass variation.

As the speed of a particle increases, its rest mass _____________.

Multiple Choice Options

  • A increases
  • B decreases
  • C remains the same
  • D changes

Step-by-Step Verified Solution

**Answer:** (c) remains the same. **Step-by-Step Explanation:** Rest mass is an invariant quantity.

All Questions in this Chapter

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