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When a sample of solid lithium is placed...

When a sample of solid lithium is placed in a flask of hydrogen gas then following reaction happened `""_1^1 H + ""_3 Li^7 rarr ""_2 He^4 + ""_2He^4` This statement is.
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The correct Answer is:
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In critical condition, k=1. the chain reaction will be steady. The size of the fissionable material used is said to be the critical size and its mass the critical mass.
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MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS-ATOMS, MOLECULES AND NUCLEI -Exercise 1 (TOPICAL PROBLEMS)
  1. An alpha-particlee of mass m suffers one dimensional elastic collision...

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  2. The operation of a nuclear reactor is said to be critical, if the mult...

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  3. On bombardment of U^235 by slow neutrons, 200 MeV energy is released. ...

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  4. The binding energies of the atoms of elements A and B are E(a) and E(b...

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  5. If 200 MeV of energy is released in the fission of 1 nucleus of ""(92)...

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  6. If 200 MeV energy is released in the fission of a single nucleus of .(...

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  7. When a sample of solid lithium is placed in a flask of hydrogen gas th...

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  8. What is de-Broglie wavelength of the electron accelerated through a po...

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  9. What is de-Broglie wavelength of the electron accelerated through a po...

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  10. In Davisson-Germer experiment maximum intensity is observed at

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  11. The energy of a photon is equal to the kinetic energy of a proton. If ...

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  12. If the linear momentum of a particle is 2.2xx10^(4)kg-ms^(-1), then wh...

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  13. An electron is accelerated under a potential difference of 182 V. the ...

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  14. The kinetic energy of an electron gets tripled, then the de-Broglie wa...

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  15. The de-Broglie wavelength of the electron in the ground state of the h...

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  16. An alpha- particle and a proton are accelerated from rest by a potenti...

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  17. An electron of mass m(e) and a proton of mass m(p) are moving with the...

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  18. Electrons with de-Broglie wavelength lambda fall on the target in an X...

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  19. The de-Brogile wavelength associated with electron in the n = 4 level ...

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  20. Find the de-Broglie wavelength of an electron with kinetic energy of 1...

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