Physics Circle home Student Login

Home›Chapters›Atomic Structure PYQs›Bohr Model: Orbits, Speed & Angular Momentum›Question 122

NEET 1997 (AIPMT) · Bohr Model: Orbits, Speed & Angular Momentum

Bohr Model: Orbits, Speed & Angular Momentum question from NEET 1997 (AIPMT)

Q122NEET 1997 · AIPMTEasy

Bohr Model: Orbits, Speed & Angular Momentum

When hydrogen atom is in its first excited level, its radius is .......... of the Bohr radius.

Show answer and solution

Answer: (b)

  1. First excited level means n=2n = 2.
  2. r2=22a0=4a0r_2 = 2^2 a_0 = 4a_0.
  3. So the answer is (b) 4 times.
Report a mistake

More questions on Bohr Model: Orbits, Speed & Angular Momentum