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

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?

Which of these statements is true regarding photoelectric emission?

The photoelectric effect proves that

The radiation force experienced by a disc of radius $r$ when exposed to radiation of intensity $/$ is $F$, then the maximum value of$F$ is

A plane electromagnetic wave is incident on a plane surface of area $A$ normally, and is perfectly reflected. If energy $E$ strikes the surface in time $t$ then average pressure exerted on the surface is ($c=$ speed of light)

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