Nuclear radius (AQA A-Level Physics): Quizzes

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Nuclear radius
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What is the value of R0R_0 in the nuclear radius formula R=R0A1/3R = R_0 A^{1/3}?

1.051.05 fm

By what factor does nuclear radius increase when nucleon number is doubled?

21/3≈1.262^{1/3} \approx 1.26

Why does nuclear density remain constant for all nuclei?

Nucleon number AA cancels in ρ\rho calc

What is the density of nuclear matter?

3.4×10173.4 \times 10^{17} kg m−3^{-3}

Why are electrons superior to alpha particles for measuring nuclear radii?

Electrons interact via EM force only

Why must electron de Broglie wavelength match nuclear dimensions?

Essential for clear diffraction patterns

What does a graph of RR versus A1/3A^{1/3} show experimentally?

Straight line through origin, gradient 1.05 fm

What upper limit did Rutherford establish for the gold nucleus radius?

Approximately 10−1410^{-14} m

How do electrons interact when measuring nuclear radii?

Only through electromagnetic force

Nuclear matter is how much denser than the densest ordinary matter?

Approximately 101310^{13} times

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