Nuclear and Particle Physics [GATE (Graduate Aptitude Test in Engineering) Physics]: Questions 36 - 40 of 53

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Question 36

Nuclear and Particle Physics

Appeared in Year: 2008

Question

MCQ▾

An nucleus is spherical and has a charge radius and a volume . According to the empirical observations of the charge radii, the volume of the nucleus, assumed to be spherical, is –

Choices

Choice (4)Response

a.

b.

c.

d.

Question 37

Nuclear and Particle Physics

Appeared in Year: 2007

Question

MCQ▾

The strange baryon has the quark structure –

Choices

Choice (4)Response

a.

b.

c.

d.

Question 38

Nuclear and Particle Physics

Appeared in Year: 2008

Question

MCQ▾

A neutral pi meson has a rest – mass of approximately and a lifetime of . A produced in the laboratory is found to decay after into two photons. Which of the following sets represents a possible set of energies of the two photons as seen in the laboratory?

Choices

Choice (4)Response

a.

b.

c.

d.

Question 39

Nuclear and Particle Physics

Appeared in Year: 2007

Question

MCQ▾

Fission fragments are generally radioactive as,

Choices

Choice (4)Response

a.

they have excess of protons

b.

their total kinetic energy is of the order of

c.

they are products of radioactive nuclides

d.

they have excess of neutrons

Question 40

Nuclear and Particle Physics

Appeared in Year: 2007

Question

MCQ▾

Half -life of a radio – isotope is years. If there are radioactive nuclei in a sample today, the number of such nuclei in the sample years ago were –

Choices

Choice (4)Response

a.

b.

c.

d.

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