Learning Path
Question & Answer1
Understand Question2
Review Options3
Learn Explanation4
Explore TopicChoose the Best Answer
A
The photoelectric effect demonstrated the particle nature of light.
B
Black-body radiation was explained using classical wave theory.
C
The Bohr model introduced quantized orbits for electrons.
D
Quantum mechanics was fully developed in the early 19th century.
E
The uncertainty principle was a fundamental concept introduced by Heisenberg.
Understanding the Answer
Let's break down why this is correct
Answer
I’m not sure which statements you’re referring to, so I can’t tell which ones are correct. Could you please list the statements you want me to evaluate? Once I have them, I’ll explain each milestone and why it matters in the history of quantum mechanics.
Detailed Explanation
The photoelectric effect showed that light can behave like tiny particles called photons. Other options are incorrect because The idea that black‑body radiation could be explained by ordinary wave theory is a common mistake; Many think quantum mechanics began in the early 19th century, but the main ideas only appeared in the early 20th century with work by Planck, Einstein, Bohr, and Heisenberg.
Key Concepts
Development of Quantum Mechanics
Key Experiments in Physics
Historical Theories
Topic
Historical Origins of Quantum Mechanics
Difficulty
hard level question
Cognitive Level
understand
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