JEE PHYSICS MCQ: ATOMS

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In Rutherford scattering experiment, what will be the correct angle for

\alpha -

scattering for an impact parameter b = 0

View answer and explanation

Correct option: D

180^\circ

Option D (

180^\circ

) is correct because when the impact parameter is zero, the alpha particle approaches the nucleus directly and rebounds back.

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The de-Broglie wavelength of an electron in the first Bohr orbit is The volume occupied by an atom is greater than the volume of the nucleus by a factor of about For a hydrogen atom, when electron jump from

n

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{n}=1

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\lambda_0

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\lambda_0

'. Energy of characteristic X-ray is a consequence of Taking Rydberg’s constant

{R_H} = 1.097\,\, \times \,\,{10^7}\,\,m

, first and second wavelength of Balmer series in hydrogen spectrum is When hydrogen atom is in its first excited level, its radius is its ground state radius