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Question 48

Light of energy 5.0 eV falls on a metal of work function 3.0 eV and electrons are emitted, determine the stopping potential. [electronic charge, e = 1.60 x 108ms-19]

  • A.1.7V
  • B.2.0V
  • C.8.0V
  • D.15.0V
Objective

Question details

Exam body
WAEC
Subject
Physics
Year
2005
Question no.
#48
Type
Objective
Previous · Q47A process by which two light atoms join to form a new atom of higher atomic mass… Next · Q49 The mass of a proton is 1.0089\(\mu\) and that of a neutron is 1.0089\(\mu\)…

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