Atomic Structure: Practice Problem & Solution

Short Solution (Best for NEET):

To solve this problem, we apply the core principles of Atomic Structure. Understanding the underlying formula is key to arriving at the correct answer below:

Bohr's theory states angular momentum \(L = n h / (2\pi)\). So (A) is true. Mass of electron (\(9.109 \times 10^{-31}\text{ kg}\)) is not equal to mass of proton (\(1.672 \times 10^{-27}\text{ kg}\)). So (R) is false. Hence, (A) is true but (R) is false.