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(a) An atom initially in an energy level with E=-6.52 {eV} abs
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(a) An atom initially in an energy level with absorbs a photon that has wavelength . What is the internal energy of the atom after it absorbs the photon? (b) An atom initially in an energy level with emits a photon that has wavelength . What is the internal energy of the atom after it emits the photon?

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Optics And Modern Physics (DC Pandey)

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(a) An atom initially in an energy level with absorbs a photon that has wavelength . What is the internal energy of the atom after it absorbs the photon? (b) An atom initially in an energy level with emits a photon that has wavelength . What is the internal energy of the atom after it emits the photon?
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(a) Energy of photon Internal energy after absorption (b) Energy of emitted photon Internal energy after emission
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Practice questions from Optics And Modern Physics (DC Pandey)

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A freshly prepared sample of a certain radioactive isotope has an activity of . After its activity is . (a) Find the decay constant and half-life (b) How many atoms of the isotope were contained in the freshly prepared sample? (c) What is the sample's activity after it is prepared?
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Book:

Optics And Modern Physics (DC Pandey)

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8 protons and 8 neutrons are separately at rest. How much energy will be released if we form nucleus? Given :
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Optics And Modern Physics (DC Pandey)

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  3. If Assertion is true, but the Reason is false.
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Optics And Modern Physics (DC Pandey)

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  2. If both Assertion and Reason are true but Reason is not the correct explanation of Assertion.
  3. If Assertion is true, but the Reason is false.
  4. If Assertion is false but the Reason is true.
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Nuclei

Book

Book:

Optics And Modern Physics (DC Pandey)

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A free neutron at rest, decays into three particles: a proton, an electron and an anti-neutrino.
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Question Text
(a) An atom initially in an energy level with absorbs a photon that has wavelength . What is the internal energy of the atom after it absorbs the photon? (b) An atom initially in an energy level with emits a photon that has wavelength . What is the internal energy of the atom after it emits the photon?
TopicNuclei
SubjectPhysics
ClassClass 12
Answer TypeText solution:1
Upvotes125