Practicing Success

Target Exam

CUET

Subject

Physics

Chapter

Nuclei

Question:

Which of the following is NOT true ?

Options:

Dimensions of an electron are incomparable to the size of the nucleus.

Dimensions of nucleus is slightly smaller than that of an atom.

Protons and neutrons reside inside the nucleus.

Protons make the nucleus positively charged.

Correct Answer:

Dimensions of nucleus is slightly smaller than that of an atom.

Explanation:

Experiments on scattering of α-particles demonstrated that the radius of a nucleus was much smaller than the radius of an atom by a factor of about 104.