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NEET 2019
Exam
NEET
Year
2019
Subject
Physics
Chapter
Atomic Physics

NEET 2019 · Physics · Atomic Physics

The total energy of an electron in an atom in an orbit is - 3.4eV ....

The total energy of an electron in an atom in an orbit is −3.4eV.- 3.4eV . Its kinetic and potential energies are, respectively,

Options

  1. A−3.4eV,−3.4eV- 3.4eV, - 3.4eV
  2. B−3.4eV,−6.8eV- 3.4eV, - 6.8eV
  3. C3.4eV,−6.8eV3.4eV, - 6.8eV
  4. D3.4eV,3.4eV3.4eV, 3.4eV

Correct answer

C. 3.4eV,−6.8eV3.4eV, - 6.8eV

Step-by-step solution

KE=−TEKE = - TE
⇒KE=3.4eV⇒ KE = 3.4eV
PE=2⋅TE=−6.8eVPE = 2 \cdot TE = - 6.8eV
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