Question 46

An atom radiates 1.5 x \(10^{-19}\)J of energy when an electron jumps from one energy level to another. What is the wavelength of the emitted radiation? (Planck’s constant =6.6 x \(10^{-34}\)Js. Speed of light in air=3 x \(10^{8}ms^{-1}\)

  • A.1.32 x \(10^{-6}\)m
  • B.2.98 x \(10^{-6}\)m
  • C.3.32 x \(10^{-6}\)m
  • D.6.82 x \(10^{-6}\)m
  • E.8.01 x \(10^{-6}\)m
Objective

Question details

Exam body
WAEC
Subject
Physics
Year
1997
Question no.
#46
Type
Objective

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