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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

Text Solution

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The correct Answer is:
B
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Knowledge Check

  • Assertion: Magnitude of electric force acting on a proton and an electron, moving in a uniform electric field is same, where as acceleration of electron is 1836 times that of a proton and opposite in direction. Reason: Electron is lighter than proton.

    A
    Both Assertion and Reason are true and Reason is the correct explanation of Assertion
    B
    Both Assertion and Reason are true and Reason is not the correct explanation of Assertion
    C
    Assertion is true and Reason is false
    D
    Assertion is false and Reason is false

  • (A ): Magnitude of electric force acting on a proton and an electron, moving in a uniform electric field is same, where as acceleration of electron is 1836 times that of a proton. (R ): Electron is lighter than proton.

    A
    Both .A. and .R. are true and .R. is the correct explanation of .A.
    B
    Both .A. and .R. are tru and .R. is not the correct explanation of .A.
    C
    A. is true and .R. is false
    D
    A. is false and .R. is true

  • The mass of one mole of electron is

    A
    1.008 g
    B
    0.55 mg
    C
    0.184 mg
    D
    1.673 mg
    • 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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