Total energy of an electron in hydrogen atom when it jumps to higher orbit from a lower orbit is:
Correct answer: A. Less negative
- A. Less negative
- B. More positive
- C. Less positive
- D. Remains same
Explanation
We know that the total energy of an electron in orbit is negative (due to attraction towards nucleus), given by the relation En = -E0 / n2 We also know that when an electron jumps from lower to higher orbit, it absorbs energy. Moreover, from the equation, we can see that as the value of n increases, the value of En will decrease (inverse relation). Hence, Total energy will be less negative.
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About Dawn of Modern Physics
Classical physics cannot explain blackbody radiation and related observations, leading to Planck’s quantum theory, in which energy is emitted or absorbed in discrete packets. Photons provide the particle model of light, with energy and momentum linked to frequency and wavelength, including the photoelectric effect and its threshold frequency.
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