Question

Match List I with List II:

LIST I (Experiment)	LIST II (Conclusion)
A. Photoelectric effect	I. Ether medium does not exist
B. Michelson-Morley	II. Light is made up of photons
C. Stern-Gerlach	III. Quantization of electronic orbit
D. Franck-Hertz	IV. Electron spin moment

Choose the correct answer from the options given below:

• (A) - (I), (B) - (II), (C) - (III), (D) - (IV)
• (A) - (II), (B) - (I), (C) - (IV), (D) - (III)
• (A) - (II), (B) - (III), (C) - (IV), (D) - (I)
• (A) - (III), (B) - (II), (C) - (I), (D) - (IV)

Hint:

Each experiment played a pivotal role in shaping modern physics and understanding quantum mechanics.

Answer 1

The Correct Option is B

• Photoelectric effect (A): Showed light consists of photons (A - II).
• Michelson-Morley experiment (B): Disproved the existence of the ether medium (B - I).
• Stern-Gerlach experiment (C): Demonstrated electron spin moment (C - IV).
• Franck-Hertz experiment (D): Confirmed the quantization of electron orbits (D - III).