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Davisson-Germer Experiment

why is it nec...

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why is it necessary to state in planck quantum theory that the total amount of energy emitted or absorbed by a body must be an integral multiple of a quantum ?

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A hydrogen like atom of atomic number $Z$ is in an excited state of quantum number $2 n$ . It can emit a photon of maximum energy 204 $e V$ . If it makes a transition to quantum state $n$ , a photon of energy 40.8 $e V$ is emitted. The value of $n$ will be.

Q. A hydrogen-like atom of atomic number

Z

is in an excited state of quantum number

2 n

. It can emit a maximum energy photon of

204 e V

. If it makes a transition to quantum state

n

, a photon of energy

40.8 e V

is emitted. Find

n, Z

and the ground state energy (in eV) for this atom. Also, calculate the minimum energy (in eV) that can be emitted by this atom during de-excitation. Ground state energy of hydrogen atom is

- 13.6 e V

.

Q. A photon of energy 12.4 eV is completely absorbed by a hydrogen atom initially in the ground state so that it is excited. The quantum number of the excited state is

Q. The quantum theory is a suggestion that heat, light, electricity or any other form of energy.

Q. A hydrogen like atom of atomic number Z is in an excited state of quantum number 2n. It can emit a maximum energy photon of 204 eV. It makes a transition to quantum state n, a photon of energy 40.8 eV is emitted. Then n and Z for this atom will be (Ground state energy of hydrogen atom is – 13.6 eV)

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