GATE (Graduate Aptitude Test in Engineering) Physics: Questions 487 - 490 of 659

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Question 487

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 488

Appeared in Year: 2007

Question

MCQ▾

The strange baryon has the quark structure –

Choices

Choice (4)Response

a.

b.

c.

d.

Question 489

Appeared in Year: 2008

Question

MCQ▾

The pressure versus temperature diagram of a given system at certain low temperature range is found to be parallel to the temperature axis in the liquid – to – solid transition region. The change in the specific volume remains constant in this region. The conclusion one can get from the above is –

Choices

Choice (4)Response

a.

The change in entropy is zero in the liquid – to – solid transition region.

b.

The entropy decreases when the system transform from liquid to solid phase in this region of temperature.

c.

The entropy of solid is zero in this temperature region

d.

The entropy increases when the system goes from liquid to solid phase in this temperature region.

Question 490

Appeared in Year: 2008

Question

MCQ▾

For arbitrary matrices and , if , then is equal to –

Choices

Choice (4)Response

a.

b.

c.

d.

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