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What should be the kinetic energy and total energy of the electron present in hydrogen atom, if its potential energy is –5.02 eV?

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What should be the kinetic energy and total energy of the electron present in hydrogen atom, if its potential energy is –5.02 eV?

(a) –2.51 eV, +2.51eV

(b) + 0.251 eV, –0.251eV

(c) –2.51 eV, –2.51 eV

(d) +2.51 eV, +2.51eV

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(a) –2.51 eV, +2.51eV

Explanation:

Given,

Total energy = \(\frac{Potential\;energy}{2}\)

= \(\frac{-5.02}{2}\)

Total energy = -2.51 eV

Kinetic energy = -Total energy

= -(-2.51 eV) = +(2.51 eV)

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