(A) : The radius of a nucleus determined by electron scattering is found to be slightly different from that determined by alpha particle scattering
(R) : The electron scattering senses the charge distribution of the nucleus where as alpha and similar particles sense the nuclear matter

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(A) is true but (R) is false

Both (A) and (R) are true and (R) is the correct explanation of (A)

Both (A) and (R) are false

Both (A) and (R) are true and (R) is not the correct explanation of (A)

answer is A.

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Detailed Solution

While alpha particles are deflected at some angles, electrons can penetrate the nucleus and provide more accurate measurements of radius. Because of this, alpha detects the nuclear matter's attraction whereas electron detects the dispersion of charges.

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

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