Embibe Experts Solutions for Chapter: Dual Nature of Matter and Radiation, Exercise 1: Exercise-1

The de Broglie waves are associated with moving particles. These particle may be

What value of voltage must be applied to an electron microscope in order to produce electrons of $\lambda =1.0 \mathrm{\AA }$

The minimum wavelength ${\lambda }_{\text{min }}$ in the continuous spectrum of $\mathrm{X}$ -rays is

The photoelectric work function for a metal surface is $4.125 \mathrm{eV}.$ The cut-off wavelength for this surface is:

$\mathrm{X}$-rays obtained by Coolidge tube

The wavelength of $x$-ray photon is $0.01 \mathrm{\AA },$ its momentum in $\mathrm{Kg} \mathrm{m} {\mathrm{s}}^{-1}$ is

An $X$ -ray photon has a wavelength $0.01\AA .$ It momentum (in ${\mathrm{kgms}}^{-1}$) is

When ultraviolet rays incident on a metal plate then the photoelectric effect does not occur, it occurs by incidence of