Related InterviewSolutions

• Hydrogen atom contains one electron but its emission spectrum consists of so many lines. How it is possible? Describe in brief.
• Write shortcomings of Bohr’s theory.
• Write mathematical formulae for angular momentum related to quantisation in Bohr’s theory.
• By which hypothesis Bohr’s second postulate can be summarised?
• In a sample of hydrogen gas mostly atoms are in n = 1 energy level. On passing visible light through this gas some spectrum lines are absorbed. Which lines (Lyman or Balmer) spectrum are absorbed maximum and why?
• Lyman series of hydrogen lies in which part of electromagnetic spectrum?
• In the following constants which is equal to ground states for all hydrogen similar ions?(a) orbital speed of electron(b) radius of orbit(c) angular momentum of electron(d) energy of the atom
• On increase in the value of principal quantum number in hydrogen atom, the potential energy of the atom :(a) decreases(b) increases(c) remains same(d) potential energy increases and decreases alternatively
• If radius of first Bohr orbit in hydrogen atom is 0.5 Å, then what will be radius in fourth Bohr orbit?
• What will be the relation of radius of different classes of hydrogen atom?