Question

As the electron in Bohr orbit of hydrogen atom passes from state n = 2 to n = 1, the KE (K) and PE (U) change as –

• A. K two fold and U also two fold
• B. Both K and U four fold
• C. K four fold and U two fold
• D. K two fold and U four fold

Answer 1

Answer: (B)

Both K and U four fold

Answer 2

KE µ $\frac{1}{n^{2}}$ and PE µ $\frac{1}{n^{2}}$