Which of the following statements are true regarding Bohr's model of hydrogen atom |
(I) Orbiting speed of electron decreases as it shifts to discrete orbits away from the nucleus |
(II) Radii of allowed orbits of electron are proportional to the principal quantum number |
(III) Frequency with which electrons orbits around the nucleus in discrete orbits is inversely proportional to the principal quantum number |
(IV) Binding force with which the electron is bound to the nucleus increases as it shifts to outer orbits |
Select correct answer using the codes given below |
Codes : |
A) I and III
B) II and IV
C) I, II and III
D) II, III and IV
Correct Answer: A
Solution :
[a] Orbital speed varies inversely as the radius of the orbit. Energy increases with the increase in quantum number. |
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