Embibe Experts Solutions for Chapter: Bohr Model, X-Ray Spectra, Wave-Particle Duality, Exercise 1: West Bengal Board-2019

Draw the curve showing de Broglie wavelength of a particle with its momentum.

 Find the momentum of a photon of wavelength $0.01 \mathrm{A}$

Mention the inference of the Davission-Garmer experiment

Using Bohr's postulate of the atomic model, derive the expression for the radius of ${\mathrm{n}}^{\mathrm{th}}$ orbit.

What is the ionisation energy of an atom?What is the value of it for  hydrogen atom?

Under what potential difference should an electron be an electron be accelerated to obtain de Broglie wavelength of $0.6 \mathrm{A}$. (

$\mathrm{h}=6.62\times {10}^{-34}\mathrm{J}-\mathrm{s}. , {\mathrm{m}}_{\mathrm{e}}=9.1\times {10}^{-31}\mathrm{kg}$

How are the characteristic x-rays spectrum formed?

If the value of the Rydberg constant of hydrogen is $109737 c{m}^{-1}$. Determine the longest and shortest wavelength of the Balmer series