Embibe Experts Solutions for Chapter: Dual Nature of Radiation and Matter, Exercise 1: Jharkhand Board-2018

Momentum of a photon of frequency $\nu$ is

The photoelectric cut-off voltage in a certain experiment is $1.5 \mathrm{V}$. The maximum kinetic energy of emitted photoelectrons is

What are de-Broglie waves? Calculate de-Broglie wavelength of a proton of momentum $2.55\times {10}^{-22} \mathrm{kg} \mathrm{m} {\mathrm{s}}^{-1}$. $(h=6.6\times {10}^{-34} \mathrm{J} \mathrm{s})$

In a photoelectric experiment, if both the intensity and frequency of incident light are doubled, then saturation photoelectric current. 

Light of frequency $7.21\times {10}^{14} \mathrm{Hz}$ is incident on a metal surface. Electrons with a maximum speed of $6.0\times {10}^5 \raisebox{1ex}{$\mathrm{m}$}\!\left/ \!\raisebox{-1ex}{$\mathrm{s}$}\right.$ are ejected from the surface. What is the threshold frequency for photoemission of electrons?

The momentum of a photon of frequency $\nu$ is

What is photoelectric effect? Define threshold frequency and stopping potential.