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Ratio of masses of proton and electron i...

Ratio of masses of proton and electron is

A

1.8

B

`1.8 xx 10^(3)`

C

Infinite

D

None of these

Text Solution

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The correct Answer is:
B
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AAKASH SERIES-ATOMIC STRUCTURE-Objective Exericse - 2A
  1. Ratio of masses of proton and electron is

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  2. The charge of an electron is 1.6 xx 10^(-19) coulombs. What will be th...

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  3. The costancy of e/m ratio for electron shows that

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  4. The increasing order of e/m value for electron, proton, neutron and al...

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  5. The ratio between the neutrons present in carbon atom and silicon atom...

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  6. The number of nucleons in the isotope of an atom .(Z)X^(m) are

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  7. An oxide of nitrogen has a molecular weight of 30. Total number of ele...

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  8. Maximum sum of the number of neutrons and protons in an isotope of hyd...

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  9. Consider the following pairs of ions (A) Sc^(+3) and Ti^(+4) (B) Mn...

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  10. According to Planck's Quantun theory, the correct statements are (a...

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  11. Which of the following statements is incorrect ?

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  12. Energy equal to the mass of one electrons is

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  13. The ratio of energies of photons with wavelengths 2000A^(0) and 4000A^...

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  14. The energy of an electromagnetic radiation is 3 xx 10^(-12) ergs. What...

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  15. Which of the following statements regarding spectral series is correct...

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  16. According to the Moseley's law, the frequency of a spectral line in X-...

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  17. In a series in the line spectrum of hydrogen the wavelength of radiati...

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  18. The frequency of the spectral line obtained when the electron in n = 3...

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  19. Assertion (A) : The energy of ultraviolet radiation is greater than th...

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  20. The wavelength of the first member of the Balmer series in hydrogen sp...

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