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In Rutherford's alpha particle scatterin...

In Rutherford's `alpha` particle scattering experiment with their gold foil 8100 scintillations per minute are observed at an angle of `60^(@)` . The number of seintillations per minute at `120^(@)` will be

A

100

B

2025

C

32400

D

900

Text Solution

Verified by Experts

The correct Answer is:
D
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AAKASH SERIES-ATOMS-EXERCISE -II
  1. If the electron in an hydrogen atom jumps from an orbit with level n(f...

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  2. An alpha nucleus of energy 1/2 m vartheta^(2) bombards a heavy nuclear...

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  3. In Rutherford's alpha particle scattering experiment with their gold f...

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  4. An alpha- particle of energy 5 Mev is scattered through 180^(@) by a f...

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  5. When the electron in hydrogen atom jumps from the second orbit to the...

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  6. The ratio of the largest to shortest wavelengths in Balmer series of h...

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  7. An electron in a hydrogen atom makes a transition n(l) rarr n(2), wher...

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  8. Any radiation in the ultra violet region of Hydrogen spectrum is able ...

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  9. A hydrogen atom emits a photon corresponding to an electron transtion ...

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  10. The wave number of energy emitted when electron jumbs from fourth orbi...

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  11. In a Bohr atom the electron is replaced by a particle of mass 150 time...

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  12. If the wavelength of first member of Balmer series of hydrogen spectru...

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  13. A hydrogen-like atom (atomic number Z) is in a higher excited state of...

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  14. Electrons from n = 2 to n= 1 in hydrogen atom is made to fall on a met...

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  15. Let vartheta(1) be the frequency of the series limit of the Lyman seri...

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  16. The transition from the state n = 4 to n = 3 in a hydrogen like atom r...

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  17. Energy required for the electron excitation in Li++ from the first to ...

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  18. What would be maximum wavelength for Brackett sereis of hydrogen-spect...

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  19. What would be the radius of second orbit of He^(+)ion ?

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  20. The wavelength of Lymen series for first number is

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