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

The wavelength ${\lambda }_{\mathrm{e}}$ of an electron and ${\lambda }_{\mathrm{p}}$ of a photon of same energy $E$ are related by:

A photon of wavelength $\lambda$ is absorbed by an electron confined to a box of length $\sqrt{\frac{35h\lambda }{8mc}}$. As a result, the electron makes a transition from state, $k=1$ to the state $n$. Subsequently, the electron transits from the state $n$ to the state $m$ by emitting a photon of wavelength, ${\lambda }^{\text{'}}=1.75\lambda$. Then,

Photon of frequency $\nu$ has a momentum associated with it. If $c$ is the velocity of light, the momentum is

The stopping potential in the context of photoelectric effect depends on the following property of incident electromagnetic radiation:

Which of these statements is true regarding photoelectric emission?

The photoelectric effect proves that

The work function of a metal is $1.5 \mathrm{eV}.$ Light of wavelength $2500 \stackrel{\mathrm{o}}{\mathrm{A}}$ is incident on this metal. Maximum velocity of photoelectrons is $\underline{ }$
 

Light of wavelength $4000 \mathrm{\AA }$ is incident on a metal plate whose work function is $2 \mathrm{eV}.$ What is maximum kinetic energy of emitted photoelectron?