Verified Solution • 2025–26 Session moderate

QPages 394-395: Q7: HC Verma: Concepts of Physics - Volume 2 X-Rays Pages 394-395: Q7 Solution: X-ray incident on a material

⚠️ Common Exam Traps & Conceptual Pitfalls

Students frequently assume massless X‑ray photons cannot exert force or impulse, overlooking that each photon carries momentum $p=E/c$; when absorbed or reflected the material gains momentum, producing a measurable force, impulse, and energy transfer.

X-ray incident on a material

Multiple Choice Options

  • A exerts a force on it
  • B transfers energy to it
  • C transfers momentum to it
  • D transfers impulse to it.

Step-by-Step Verified Solution

**Answer:** (a), (b), (c), (d). **Step-by-Step Explanation:** X-rays exert force, transfer energy, momentum, and impulse to the material.

All Questions in this Chapter

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