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Among alpha, beta and gamma-rays, which ...

Among `alpha, beta and gamma`-rays, which is the most penetrating?

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`gamma`-rays
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ICSE-STRUCTURE OF ATOM-Very Short Answer Type Questions
  1. Mention the charge, mass and e/m ratio for an electron.

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  2. What is the nature of charge on (i) cathode rays (ii) anode rays?

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  3. Among alpha, beta and gamma-rays, which is the most penetrating?

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  4. Who proposed the first model of atom?

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  5. Give a rough estimate of number of a particles which suffer a deflecti...

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  6. If the nucleus of an atom is magnified to the size of a football, how ...

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  7. Give the equation which had been instrumental in the discovery of neut...

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  8. How are the atomic number (Z) and mass number (A) related to each othe...

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  9. Do isobars possess similar chemical properties?

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  10. Why are the waves associated with light called electromagnetic waves?

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  11. Define wavelength and frequency of a wave.

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  12. Among X-rays and microwaves, which does possess a higher wavelength ra...

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  13. Give the wavelengths of D1 and D2 lines of sodium.

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  14. Which transitions are responsible for the occurrence of Brackett serie...

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  15. The Bohr model for the spectra of a H-atom

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  16. Should earth be regarded as a wave in the light of de-Broglie equation...

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  17. What does Psi^2 indicate?

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  18. How many nodal points are present in a 3s orbital?

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  19. Which quantum number does not depend upon the value of n?

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  20. For a given value of l, how many values of m are permissible?

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