(a) Explain the term photoelectric effect. (b) The diagram above represents a photocell with its associated electric circuit. Identify each of the physical ...

Question 1 Report

(a) Explain the term photoelectric effect.
(b)


The diagram above represents a photocell with its associated electric circuit. Identify each of the physical quantities
represented by the letters A, B, C, D, E and F

(c) What factor determines the: (i) current produced by the photocell

(ii) maximum kinetic energy of the photoelectrons?

(d) State one similarity and one difference between photoemission and evaporation

(e) Name two methods by which a beam of free electrons may be produced other than photoemission

(f) State two applications of photoelectric effect.

(g) A light wavelength 5.0 x 10\(^{-7}\) m is incident on metal resulting in photoemission of electrons. If the work function of the metal is 3.04 x 10\(^{-19}\)J, calculate the:

(i) frequency of the light

(ii) energy of the incident photon,

(iii) maximum kinetic energy of the photoelectrons (Speed of light = 3.00 x 108ms\(^{-1}\); Planck's constant = 6.6 x 10\(^{-34}\)Js).

Download The App On Google Playstore

Everything you need to excel in JAMB, WAEC & NECO

Green Bridge CBT Mobile App
Personalized AI Learning Chat Assistant
Thousands of JAMB, WAEC & NECO Past Questions
Over 1200 Lesson Notes
Offline Support - Learn Anytime, Anywhere
Green Bridge Timetable
Literature Summaries & Potential Questions
Track Your Performance & Progress
In-depth Explanations for Comprehensive Learning