OnlineCBT
Chemistry · Structure of atom
हिन्दीConsider the following statements regarding Bohr's model for the hydrogen atom: (A) The electrons move around the nucleus in circular paths of fixed radius and energy called orbits. (B) The frequency of radiation emitted or absorbed is given by \( \nu = \frac{E_2 - E_1}{h} \). (C) The angular momentum of an electron is quantized: \( m_e v r = n \frac{h}{2\pi} \). (D) The energy of an electron in an orbit is directly proportional to \( n^2 \). Which of the above statements are correct?
Correct answer · Option 4
(A), (B) and (C) only
Explanation
Statements (A), (B), and (C) are correct postulates of Bohr's model. Statement (D) is incorrect because energy is inversely proportional to \( n^2 \) (\( E_n \propto -\frac{1}{n^2} \)).
