Embibe Experts Solutions for Chapter: Atoms, Exercise 1: Exercise

Use Bohr's postulate for permitted orbits to prove that the circumstances of the nth permitted orbit for the electron can contain exactly n wavelengths of the de Broglie wavelength associated with the electron in that orbit.

Write down the name of the series whose few lines fall in visible region of hydrogen spectrum.

Hydrogen atom has only one electron but there are many lines in its emission spectrum. Explain briefly how it is possible.

What is used to deposit more charge on the oil droplets in Millikan’s oil-drop experiment?

The energy required to separate a hydrogen atom into a proton and an electron is $13.6 \mathrm{eV}$. Find the kinetic energy of the orbiting electron. $$

Explain the J.J. Thomson experiment to determine the specific charge of electron.

Give a brief account of Thomson model of atom. What are its limitations?

Discuss different atomic models and compare their merits and demerits.