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(A) the trajetory traced by an incident ...

(A) the trajetory traced by an incident particle depends on the impact parameter of collision.
(R) the impact parameter is the perpendicular distance of the initial velocity vector of the incident particle from the centre of the target nucleus.

A

Both 'A' and 'R' are true and 'R' is the correct explanation of 'A'.

B

Both 'A' and 'R' are true 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

Text Solution

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The correct Answer is:
B
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AAKASH SERIES-ATOMS-EXERCISE -IB
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  2. (A) large angle of scattering of alpha particles led to the discovery ...

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  3. (A) the trajetory traced by an incident particle depends on the impact...

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  4. Thickness of the foil of gold used in alpha-particle scattering experi...

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  5. In scattering experiment, find the distance of closest approach, if a ...

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  6. According the classical theory of Rutherford's model, the path of elel...

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  7. When an electron of the hydrogen atom jumps from a higher to lower en...

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  8. (A) hydrogen atom consists of only one electron but its emission spect...

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  9. (A) for the scattering of alpha- particles at large angles, only the n...

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  10. Statement-1 : Between any two given energy levels, the number of abosr...

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  11. (A) atoms of each element are stable and emit characteristic spectrum....

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  12. (A) most of the mass of the atom is concentrated in its nucleus. (R)...

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  13. (A) bohr's third postulaate states that the stationary orbits are thos...

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  14. (A) the total energy of an electron revolving in any stationary orbit ...

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  15. (A) in the experiment of alpha particle scattering, extremely thin gol...

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  16. (A) in alpha particle scattering number of alpha paritcle undergoing h...

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  17. (A) electrons int the atom are held due to coulomb forces. (R) the a...

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  18. (A) according to classical electromagnetic theory an accelerated parti...

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  19. Assertion : A laser beam of 0.2 watt power can drill holes through a m...

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  20. Assertion (A) : LASER is used to measure distant object as moon. Re...

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