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Ratio of masses of proton and electron i...

Ratio of masses of proton and electron is

A

1.8

B

`1.8xx10^(3)`

C

Infinite

D

None of these

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The correct Answer is:
B
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AAKASH SERIES-ATOMIC STRUCTURE-OBJECTIVE EXERCISE - 2
  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 constancy of e/m ratio for electron shows that

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

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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. Mass numbers of Li, Be and B are 7, 9 and 10 respectively. Which of th...

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  11. The energy required to melt 1g. Ice is 33J. The number of quanta of ra...

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

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  13. Energy equal to the mass of one electron is

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  14. Which of the following statements is incorrect?

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  15. Find the ratio of energy of a photon of 2000 Å wavelength radiation to...

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

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  17. If a metal is irradiated with light of frequency 3 xx 10^(19) sec^(-1)...

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  18. In a photoelectric experiment, kinetic energy of photoelectrons was pl...

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  19. Calculate the mass of a photon with wavelength 3.6 Å.

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

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