Question

Match List–I (Fundamental Experiment) with List–II (its conclusion) and select the correct option from the choices given below the list

List-1	List-2
(A) Franck-Hertz Experiment	(i) Particle nature of light
(B) Photo-electric experiment	(ii) Discrete energy levels of atom
(C) Davison – Germer Experiment	(iii) Wave nature of electron
	(iv) Structure of atom

• A. (A) – (ii); (B) – (iv); (C) – (iii)
• B. (A) – (ii); (B) – (i); (C) – (iii)
• C. (A) – (iv); (B) – (iii); (C) – (ii)
• D. (A) – (ii); (B) – (iv); (C) – (iii)

Answer 1

The correct option is B (A) – (ii); (B) – (i); (C) – (iii)

Franck-Hertz Experiment confirmed the quantum theory which predicted that electrons occupied only discrete, quantized energy states, which matches with option (ii) in list 2.
Photoelectric effect experiment showed that light can also behave like particles.
Energy comes in particle-like chunks which is the basic of quantum physics, which matches with option (i) in list 2.
The Davisson-Germer experiment demonstrated the wave nature of the electron, confirming the earlier hypothesis of deBroglie. which matches with option (iii) in list 2.