Dual Nature of Radiation and Matter - Questions & Numericals
### Conceptual Questions (50)
1. What is the dual nature of light?
2. Who proposed the photon theory of light?
3. State Einstein's photoelectric equation.
4. Define the work function of a metal.
5. What is the threshold frequency?
6. Why does increasing the intensity of light not increase the kinetic energy of photoelectrons?
7. Explain the concept of wave-particle duality.
8. What is a photon? List its properties.
9. How does the Compton effect prove the particle nature of light?
10. What are the experimental proofs of the wave nature of matter?
11. Define the de Broglie wavelength.
12. How is the de Broglie wavelength related to momentum?
13. Why do we not observe the wave nature of macroscopic objects?
14. What is the significance of the Davisson-Germer experiment?
15. Explain the concept of matter waves.
16. How does electron diffraction confirm the wave nature of electrons?
17. What is the Heisenberg uncertainty principle?
18. Why can't we measure both the position and momentum of a particle precisely?
19. How does the double-slit experiment with electrons prove wave nature?
20. What is the relationship between energy and frequency of a photon?
21. How does the intensity of light affect the photoelectric effect?
22. What is stopping potential in the photoelectric effect?
23. How does the wave theory fail to explain the photoelectric effect?
24. What are the limitations of classical physics in explaining blackbody radiation?
25. What is Planck's quantum hypothesis?
26. What is the significance of Planck's constant?
27. Why does the photoelectric effect not occur at all frequencies?
28. What are the main postulates of de Broglie's hypothesis?
29. What is the impact of the dual nature of matter on quantum mechanics?
30. How does quantum mechanics differ from classical mechanics?
31. What is the Bohr model of the atom?
### Conceptual Questions (50)
1. What is the dual nature of light?
2. Who proposed the photon theory of light?
3. State Einstein's photoelectric equation.
4. Define the work function of a metal.
5. What is the threshold frequency?
6. Why does increasing the intensity of light not increase the kinetic energy of photoelectrons?
7. Explain the concept of wave-particle duality.
8. What is a photon? List its properties.
9. How does the Compton effect prove the particle nature of light?
10. What are the experimental proofs of the wave nature of matter?
11. Define the de Broglie wavelength.
12. How is the de Broglie wavelength related to momentum?
13. Why do we not observe the wave nature of macroscopic objects?
14. What is the significance of the Davisson-Germer experiment?
15. Explain the concept of matter waves.
16. How does electron diffraction confirm the wave nature of electrons?
17. What is the Heisenberg uncertainty principle?
18. Why can't we measure both the position and momentum of a particle precisely?
19. How does the double-slit experiment with electrons prove wave nature?
20. What is the relationship between energy and frequency of a photon?
21. How does the intensity of light affect the photoelectric effect?
22. What is stopping potential in the photoelectric effect?
23. How does the wave theory fail to explain the photoelectric effect?
24. What are the limitations of classical physics in explaining blackbody radiation?
25. What is Planck's quantum hypothesis?
26. What is the significance of Planck's constant?
27. Why does the photoelectric effect not occur at all frequencies?
28. What are the main postulates of de Broglie's hypothesis?
29. What is the impact of the dual nature of matter on quantum mechanics?
30. How does quantum mechanics differ from classical mechanics?
31. What is the Bohr model of the atom?
