Parts C and D only.Thanks 1.Using the experimental apparatus shown in right figure,when a UV light with wavelength A = 240nm shines ona particular metal plate, electrons are emitted from plate1, crossing the gap to plate 2 and causing a current toflow through the wire connecting two plates. Thebattery voltage is gradually increased until the current inthe ammeter drops to zero, at which point the batteryvoltage is 1.40 V. Ask:a) What is the energy of the photons in the beam oflight in eV?b) What is the maximum kinetic energy of the emitted electrons in eV?c) What is work function of the metal in eV?d) What is the longest wavelength that would cause electrons to be emitted for this metal?plate 2AVincidentlightPelectrons Tammeterplate 1

C) Solution:→Part C Work function of the metal is given as: W0 = hf - Kmax Applying…

1. Using the experimental apparatus shown in right fig when a UV light with wavelength 1 = 240nm shing a particular metal plate, electrons are emitted from p 1, crossing the gap to plate 2 and causing a current t flow through the wire connecting two plates. The battery voltage is gradually increased until the curre the ammeter drops to zero, at which point the battery voltage is 1.40 V. Ask: a) What is the energy of the photons in the beam of light in eV? b) What is the maximum kinetic energy of the emit c) What is work function of the metal in eV?

1. Using the experimental apparatus shown in right fig when a UV light with wavelength 1 = 240nm shing a particular metal plate, electrons are emitted from p 1, crossing the gap to plate 2 and causing a current t flow through the wire connecting two plates. The battery voltage is gradually increased until the curre the ammeter drops to zero, at which point the battery voltage is 1.40 V. Ask: a) What is the energy of the photons in the beam of light in eV? b) What is the maximum kinetic energy of the emit c) What is work function of the metal in eV?

Modern Physics

3rd Edition

ISBN:9781111794378

Author:Raymond A. Serway, Clement J. Moses, Curt A. Moyer

Publisher:Raymond A. Serway, Clement J. Moses, Curt A. Moyer

Chapter5: Matter Waves

Section: Chapter Questions

Problem 13P

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