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Olympiad workbook
Exam
Olympiad workbook
Subject
NSEC
Chapter
Structure of Atom

Olympiad workbook · NSEC · Structure of Atom

The kinetic energy of an electron that has a wavelength of 10 nm is

The kinetic energy of an electron that has a wavelength of 10 nm is

Options

  1. A2.4×10−21 J2.4 \times 10^{-21} \mathrm{~J}
  2. B4.8×10−21 J4.8 \times 10^{-21} \mathrm{~J}
  3. C2.4×10−29 J2.4 \times 10^{-29} \mathrm{~J}
  4. D4.8×10−29 J4.8 \times 10^{-29} \mathrm{~J}

Correct answer

A. 2.4×10−21 J2.4 \times 10^{-21} \mathrm{~J}

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