In an atom, two electrons move around th...

In an atom, two electrons move around the nucleus in circular orbits taking time f and 8f to complete one revolution. The ratio of their radii is…...

`1:4`

`8:1`

`4:1`

`1:8`

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CHETANA PUBLICATION-Structure of atoms and nuclei-EXERCISE

The longest wavelength in Paschen series is obtained when an electron ...
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The Lyman series involves
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In an atom, two electrons move around the nucleus in circular orbits t...
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The energy in the ground state of hydrogen atom is -13.6 eV, then ener...
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The De Broglie wavelength associated with a particle of mass m and vel...
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In which of the following systems will the radius of the first orbit o...
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The radius of the 4th orbit of the electron will be smaller than its 8...
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In the spectrum of hydrogen atom which transition will yield longest w...
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Which of the following properties of a nucleus does not depend on it...
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If the number of nuclei in a radioactive sample at a given time is N, ...
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The volume of the nucleus is proportional to
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What is the relation between the radius of the nucleus and the mass nu...
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The nucleus having same mass number is called
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Radioactivity is a phenomenon associated with
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The emission of beta particles is from
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Geiger - Marsden's experiment confirmed the theoretical predictions of...
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