Chapter 5

Chapter # 5

1. What is cathode ray tube?

2. Differentiate between slow and fast neutron?

3. Give postulate of plank’s theory?

4. Write two defects of rutherford’s model?

5. How the mass of electron is measured using e\m value?

6. Define Hund’s rule?

7. Write name of spectral series o hydrogen atom?

8. Describe stark and zeeman effect?

9. Differentiate between frequency and wave number?

10. Write distribution of electron in the orbitals of ₂₉Cu and ₃₅Br?

11. Define azimuthal quantum number and give its importance?

12. Define Heisenberg’s principle of uncertainty and give its mathematical expression?

13. Why is it necessary to decrease pressure in the discharge tube?

14. What is the origin of line spectrum?

15. What particles are formed by the decay of free neutron? Write balanced equation?

Why the potential energy of the bounded electron is negative?