Embibe Experts Solutions for Exercise 1: Exercise

In Thomson's experiment for the determination of $\left(\frac{\mathrm{e}}{\mathrm{m}}\right)$ of electron, electric field of intensity $\text{'}\mathrm{E}\text{'}$ only is applied. Now the deflection produced by the electron beam is directly proportional to:

The energy of electron in the excited state of hydrogen atom is $-0.85 \mathrm{eV}$. If $\text{'}\mathrm{h}\text{'}$ is Planck's constant, the angular momentum of electron in the excited state is:

Velocity of electron in Bohr's first orbit of hydrogen atom is in order of

Explain the different types of spectral series.

How many quanta of different energy can be emitted by a hydrogen atom if the electron is in the third orbit? - Justify.

 What are emission and absorption spectrum ? 

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

How line spectra are produced? Discuss how the presence of elements in an emitting body may be known from its emission spectrum.