Spectral Series of Hydrogen Atom and Energy Transitions

The video tutorial explains the spectral lines of the hydrogen atom based on Bohr's third postulate. It describes how energy transitions between different orbits result in the emission of photons, forming spectral series. The Lyman series occurs with transitions to the first orbit, the Balmer series to the second, the Paschen series to the third, the Bracket series to the fourth, and the Pifan series to the fifth. The video also covers the energy of emitted radiation and introduces the Rydberg formula for the hydrogen spectrum.

According to Bohr's third postulate, what happens when an atom transitions from a higher energy state to a lower one?

• It remains in the same energy state.

• It absorbs energy in the form of a photon.

• It emits energy in the form of a photon.

• It loses an electron.

Which spectral series is obtained when an electron transitions to the first orbit in a hydrogen atom?

• Lyman series

• Paschen series

• Balmer series

• Bracket series

In which region of the electromagnetic spectrum do the frequencies of the Balmer series lie?

• X-ray

• Infrared

• Visible

• Ultraviolet

What is the spectral series called when an electron transitions to the third orbit in a hydrogen atom?

• Pifan series

• Balmer series

• Paschen series

• Lyman series

Which spectral series is associated with transitions to the fourth orbit?

• Paschen series

• Lyman series

• Balmer series

• Bracket series

What is the name of the series when an electron transitions to the fifth orbit?

• Lyman series

• Balmer series

• Bracket series

• Pifan series

What formula is used to calculate the spectrum of the hydrogen atom?

• Rydberg formula

• Bohr's formula

• Einstein's formula

• Planck's formula