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CBSE COMPLEMENTARY MATERIAL-DUAL NATURE OF MATTER AND RADIATION & ATOMS AND NUCLEI-VERY SHORT ANSWER QUESTIONS (2 mark)
- In the ground state of hydrogen atom orbital radius is 5.3 xx 10^(-11...
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- Calculate the percentage of any radioactive substance left undecayed a...
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- Why is the density of the nucleus more than that of atom ?
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- The atom ""8O^(16) has 8 protons 8 neutrons and 8 electrons while atom...
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- What is the effect on neutron to proton ratio in a nucleus when beta^(...
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- Why must heavy stable nucleus contain more neutrons than protons ?
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- Show that the decay rate R of a sample of radionuclide is related to t...
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- What is a nuclear fusion reaction ? Why is nuclear fusion difficult to...
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- Write two characteristic features of nuclear forces which distinguish ...
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- Half life of certain radioactive nuclei is 3 days and its activity is ...
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- Derive mvr=(nh)/(2pi) using de-Broglie equation.
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- Draw graph of number of scattered particles to scattering angle in Rat...
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- If the energy of a photon is 25 eV and work function of the material i...
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- What is the shortest wavelength present in the (i) Paschen series (ii)...
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- The radius of innermost electron orbit of a hydrogen atom is 5.3xx10^(...
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- The ground state energy of hydrogen atom is -13.6 eV. What are the kin...
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- Why is the wave nature of matter not more apparent to our daily observ...
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- from the relation R=R0A^(1//3), where R0 is a constant and A is the ma...
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- The energy equivalent of one atomic mass unit is
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- Write four properties of nuclear force.
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