MEDIUM
12th West Bengal Board
IMPORTANT
Earn 100

The spectrum of sodium atom should have similarly with that of hydrogen. In what sense is this true?

Important Questions on Bohr Model, X-Ray Spectra, Wave-Particle Duality

HARD
12th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 20 - Bohr Model, X-Ray Spectra, Wave-Particle Duality>EXERCISE 20>Q 19
What is the difficulty of classical theory of revolving electric charge in a hydrogen atom?
MEDIUM
12th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 20 - Bohr Model, X-Ray Spectra, Wave-Particle Duality>EXERCISE 20>Q 20
Hydrogen atom has one electron. How many lines are originated in hydrogen spectrum.
EASY
12th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 20 - Bohr Model, X-Ray Spectra, Wave-Particle Duality>EXERCISE 20>Q 21

The value of ground state energy of hydrogen atom is -13.6eV. What does the negative sign signify?

MEDIUM
12th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 20 - Bohr Model, X-Ray Spectra, Wave-Particle Duality>EXERCISE 20>Q 21

The value of ground state energy of hydrogen atom is -13.6eV. How much energy is required to take an electron in this atom from the ground state to the first excited state?

EASY
12th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 20 - Bohr Model, X-Ray Spectra, Wave-Particle Duality>EXERCISE 20>Q 22
Why are Bohr's orbits called 'stationary orbits'?
MEDIUM
12th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 20 - Bohr Model, X-Ray Spectra, Wave-Particle Duality>EXERCISE 20>Q 23
Can a hydrogen atom absorb a photon energy more than 13.6eV?
MEDIUM
12th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 20 - Bohr Model, X-Ray Spectra, Wave-Particle Duality>EXERCISE 20>Q 24
Name the series of hydrogen spectrum which has lowest wavelength ? 
HARD
12th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 20 - Bohr Model, X-Ray Spectra, Wave-Particle Duality>EXERCISE 20>Q 25
The wavelengths of some of the spectral lines obtained in hydrogen spectrum are 1216 Å, 6463 Å and 9546 Å. Which one of these wavelengths belongs to the Paschen series?