Verified Solution • 2025–26 Session moderate

QPage 364: Q3: HC Verma: Concepts of Physics - Volume 2 Photoelectric Effect and Wave-Particle Duality Page 364: Q3 Solution: A photon of energy is absorbed by a free electron of a metal…

⚠️ Common Exam Traps & Conceptual Pitfalls

Students often assume the emitted electron's kinetic energy is always exactly $h\nu - \phi$, ignoring that this value represents only the maximum possible energy. In reality, electrons lose energy through collisions within the metal, so the actual kinetic energy is less than or equal to the maximum, and emission may not occur if the electron is too deep or loses too much energy.

A photon of energy hνh\nu is absorbed by a free electron of a metal with work-function hν−ϕh\nu - \phi.

Multiple Choice Options

  • A The electron is sure to come out.
  • B The electron is sure to come out with kinetic energy hν−ϕh\nu - \phi.
  • C Either the electron does not come out or it comes out with kinetic energy hν−ϕh\nu - \phi.
  • D It may come out with kinetic energy less than hν−ϕh\nu - \phi.

Step-by-Step Verified Solution

**Answer:** (c), (d). **Step-by-Step Explanation:** The electron may not come out (c) or may come out with less than maximum kinetic energy (d) due to energy losses.

All Questions in this Chapter

QPage 363: Q1 QPage 363: Q2 QPage 363: Q3 QPage 363: Q4 QPage 363: Q5 QPage 363: Q6 QPage 363: Q7 QPage 363: Q8 QPage 363: Q9 QPage 363: Q10 QPage 363: Q11 QPage 363: Q12 QPage 363: Q13 QPage 364: Q1 QPage 364: Q2 QPage 364: Q3 QPage 364: Q4 QPage 364: Q5 QPage 364: Q6 QPage 364: Q7 QPages 363-364: Q1 QPages 363-364: Q2 QPages 363-364: Q3 QPages 363-364: Q4 QPages 363-364: Q5 QPages 363-364: Q6 QPages 363-364: Q7 QPages 363-364: Q8 QPages 363-364: Q9 QPages 363-364: Q10 QPages 363-364: Q11 QPages 363-364: Q12 QPages 363-364: Q13 QPages 363-364: Q14 QPages 365-366: Q1 QPages 365-366: Q2 QPages 365-366: Q3 QPages 365-366: Q4 QPages 365-366: Q5 QPages 365-366: Q6 QPages 365-366: Q7 QPages 365-366: Q8 QPages 365-366: Q9 QPages 365-366: Q10 QPages 365-366: Q11 QPages 365-366: Q12 QPages 365-366: Q13 QPages 365-366: Q14 QPages 365-366: Q15 QPages 365-366: Q16 QPages 365-366: Q17 QPages 365-366: Q18 QPages 365-366: Q19 QPages 365-366: Q20 QPages 365-366: Q21 QPages 365-366: Q22 QPages 365-366: Q23 QPages 365-366: Q24 QPages 365-366: Q25 QPages 365-366: Q26 QPages 365-366: Q27 QPages 365-366: Q28 QPages 365-366: Q29 QPages 365-366: Q30 QPages 365-366: Q31 QPages 365-366: Q32 QPages 365-366: Q33 QPages 365-366: Q34 QPages 365-366: Q35

Related Learning Resources & Exam Preparation

Chapter Practice Bank
Practice all topic-wise questions from Photoelectric Effect and Wave-Particle Duality
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