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4806

In the Rutherford scattering experiment, a beam of alpha particles was fired at a thin gold film and few of the particles were deflected considerably. This shows that the nucleus of an atom

A. is positively charged and is concentrated in a tiny volume
B. contains protons and electrons distributed in a tiny volume.
C. is concentrated in a tiny volume and contains alpha particles.
D. is distributed in a tiny volume and emits alpha particles.

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4807

What is the name given to the force of attraction between the nucleons in the nucleus of an atom?

A. Gravitational force.
B. Electrostatic force.
C. Magnetic force.
D. Nuclear force.

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4808

When an electron jumps directly from an orbit of n = 4 to n = 2,

A. a photon is absorbed
B. a photon is emitted
C. two photons are emitted.
D. two photons are absorbed

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4809

Two objects, A and B, accelerate from rest at uniform rates. B accelerates twice as much as Compared to A, B travels

A. at the same distance as A
B. six times as far.
C. two times as far
D. three times as far

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4810

Two objects, A and B, accelerate from rest at uniform rates. B accelerates twice as much as Compared to A, B travels

A. at the same distance as A.
B. six times as far.
C. two times as far.
D. three times as far.

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