EASY
12th ICSE
IMPORTANT
Earn 100

The ionisation potential for hydrogen atom is 13.6 V. Will it be more or less for helium?

Important Questions on Atom, Origin of Spectra : Bohr's Theory of Hydrogen Atom

EASY
12th ICSE
IMPORTANT
ISC Physics Class 12, Part-2>Chapter 13 - Atom, Origin of Spectra : Bohr's Theory of Hydrogen Atom>QUESTIONS>Q 20
The ionisation potential of helium atom is 24.6 V. How much energy is required to ionise helium atom?
EASY
12th ICSE
IMPORTANT
ISC Physics Class 12, Part-2>Chapter 13 - Atom, Origin of Spectra : Bohr's Theory of Hydrogen Atom>QUESTIONS>Q 21
Name the series of lines of hydrogen spectrum lying in the ultraviolet region.
EASY
12th ICSE
IMPORTANT
ISC Physics Class 12, Part-2>Chapter 13 - Atom, Origin of Spectra : Bohr's Theory of Hydrogen Atom>QUESTIONS>Q 22
Name the series in the hydrogen spectrum whose few lines lie in the visible region.
EASY
12th ICSE
IMPORTANT
ISC Physics Class 12, Part-2>Chapter 13 - Atom, Origin of Spectra : Bohr's Theory of Hydrogen Atom>QUESTIONS>Q 23
State the transition that emits the first line of the Balmer series of spectral lines of hydrogen.
EASY
12th ICSE
IMPORTANT
ISC Physics Class 12, Part-2>Chapter 13 - Atom, Origin of Spectra : Bohr's Theory of Hydrogen Atom>QUESTIONS>Q 24
If a hydrogen atom goes from 3rd excited state to 2nd excited state, what kind of radiation (visible light, ultraviolet, infrared, etc.) is emitted?
EASY
12th ICSE
IMPORTANT
ISC Physics Class 12, Part-2>Chapter 13 - Atom, Origin of Spectra : Bohr's Theory of Hydrogen Atom>QUESTIONS>Q 25
Name a series of hydrogen spectrum which is obtained in infrared region. Write the general formula expressing the wavelength of the series.
EASY
12th ICSE
IMPORTANT
ISC Physics Class 12, Part-2>Chapter 13 - Atom, Origin of Spectra : Bohr's Theory of Hydrogen Atom>QUESTIONS>Q 26
Write the unit of Rydberg's constant.
EASY
12th ICSE
IMPORTANT
ISC Physics Class 12, Part-2>Chapter 13 - Atom, Origin of Spectra : Bohr's Theory of Hydrogen Atom>QUESTIONS>Q 27
In a sample of hydrogen gas, most of its atoms are in the energy level n=1. On passing visible light through this gas, some spectral lines are absorbed. Lines of which series (Lyman or Balmer) are absorbed maximum and why?