Question

In Bohr's model of hydrogen atom, let $PE$ represent potential energy and $TE$ the total energy. In going to a higher orbit,

• A. PE increases, TE decreases
• B. PE decreases, TE increases
• C. PE increases, TE increases
• D. PE decreases, TE decreases

Answer 1

Answer: (C)

Potential energy $=-C/r^2$ and total energy $=-Rhc/n^2$. With higher orbit, both $r$ and $n$ increase. So, both become less negative; hence both increase.