GATE (Graduate Aptitude Test in Engineering) Physics: Questions 542 - 545 of 659

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Question 542

Appeared in Year: 2008

Question

MCQ▾

The molecular spectra of two linear molecules and are recorded in the microwave region. Which one of the following statement is correct?

Choices

Choice (4)Response

a.

would show absorption lines, but not

b.

The molecules would not show absorption lines

c.

would show absorption lines, but not

d.

The molecules would show absorption lines

Question 543

Appeared in Year: 2008

Question

MCQ▾

According to the quark model, the meson is composed to the following quarks –

Choices

Choice (4)Response

a.

b.

c.

d.

Question 544

Appeared in Year: 2007

Question

MCQ▾

In a powder diffraction pattern recorded from a face – centered cubic sample using rays, the first peak appears at . The second peak will appear at –

Choices

Choice (4)Response

a.

b.

c.

d.

Question 545

Appeared in Year: 2008

Question

MCQ▾

A nonrelativistic charged particle moves along the positive axis with a constant positive acceleration . The particle is at the origin at . Radiation is observed at at a distant point on the axis. Which one of the following statement is correct?

Choices

Choice (4)Response

a.

The radiation is plane polarized with polarization parallel to the plane along a line inclined to the axis

b.

The radiation is unpolarized

c.

The radiation is elliptically polarized

d.

The radiation is plane polarized with polarization parallel to the axis

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