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SL ARORA-ATOMS, NUCLEI AND MOLECULES-Problem
- An electron , in a hydrogen-like atom, is in excited state. It has a t...
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- How many revolutions does an electron in the first orbit of hydrogen a...
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- An electron moves about a proton in a circular orbit of radius 5 xx 10...
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- Using Bohr's formula for energy quantisation, determine (i) the larges...
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- Suppose a moving hydrogen atmo makes a head on inelastic collision wit...
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- Hydrogen atom in its ground state is excited by means of monochromatic...
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- A double ionised lithium atom is hydrogen like with atomic number 3 ...
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- A gas of hydrogen - like ion is perpendicular in such a way that ions ...
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- A hydrogen like atom (atomic number Z) is in a higher excited state o...
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- The wavelength of the first line of Lyman series for hydrogen is ident...
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- Two hydrogen-like atoms A and B are of different masses and each atom ...
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- The stopping potential for the photo-electrons emitted from a metal su...
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- Light form a dicharge tube containing hydrogen atoms falls on the surf...
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- An electron in the ground state of hydrogen atom is revolving in antic...
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- A sample contains 10^(-2)kg each of two substances A and B with half l...
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- The disintegration rate of a certain radioactive sample at any instant...
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- At a given instant there are 25% undecayed radioactive nuclei in a sam...
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- The isotope of U^(238) and U^(235) occur in nature in the ratio 140:1....
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- The mean lives of a radioactive substance are 1620 years and 405 years...
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- Some amount of a radioactive substance (half-life= 10 days) is spread ...
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