GATE PH purpose:exam-prep PYQs & Answers — Page 23

Questions 221–230 of 650. Imported answers require independent review unless marked reviewed.

matrix

has the property

and

, where

is the

identity matrix. Which one of the following is the CORRECT set of eigen values of the matrix

Your answerChoose one option.

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The

particle is a member of the Baryon decuplet with isospin state

and strangeness quantum number

. In the quark model, which one of the following is the flavour part of the

wavefunction?

Your answerChoose one option.

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Which of the following is(are) the CORRECT option(s) for the Joule-Thomson effect?

Your answerSelect all correct options. You can choose more than one.

It is an isentropic process

It is an isenthalpic process

It can result in cooling as well as heating

For an ideal gas it always results in cooling

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The deuteron is a bound state of a neutron and a proton. Which of the following statements is(are) CORRECT?

Your answerSelect all correct options. You can choose more than one.

The deuteron has a finite value of electric quadrupole moment due to non-spherical electronic charge distribution

The magnetic moment of the deuteron is equal to the sum of the magnetic moments of the neutron and the proton

The deuteron state is an admixture of

and

states

The deuteron state is an admixture of

and

states

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The Geiger-Muler counter is a device to detect

and

radiations. It is a cylindrical tube filled with monatomic gases like argon, and polyatomic gases such as ethyl alcohol. The inner electrode is along the axis of the cylindrical tube and the outer electrode is the tube. Which of the following statements is(are) CORRECT?

Your answerSelect all correct options. You can choose more than one.

Argon is used so that ambient light coming from the surroundings do not produce any signal in the detector

Ethyl alcohol is used as a quenching gas

The electric field strength decreases from the axis to the edge of the tube and the direction of the field is radially outward

The electric field increases from the axis to the edge of the tube and the field direction is radially inward

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Consider an isolated magnetized sphere of radius

with a uniform magnetization

along the positive

direction, with the north and south poles of the sphere lying on the

axis. It is given that the magnetic field inside the sphere is

, where

is the permeability of vacuum. Which of the following statements is(are) CORRECT?

Your answerSelect all correct options. You can choose more than one.

The bound volume current density is zero

The bound surface current density has maximum magnitude at the equator, where this magnitude equals

The auxiliary field

Far from the sphere, the magnetic field is due to a dipole moment

, where

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Which of the following options represent(s) linearly independent pair(s) of functions of a real variable

Your answerSelect all correct options. You can choose more than one.

and

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In the vector model of angular momentum applied to atoms, what is the minimum angle in degrees (in integer) made by the orbital angular momentum vector and the positive

axis for a

electron?

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For a transistor amplifier, the frequency response is such that the mid band voltage gain is 200. The cutoff frequencies are 20 Hz and 20 kHz. What is the ratio (rounded off to two decimal places) of the voltage gain at 10 Hz to that at 100 kHz?

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An electric field as a function of radial coordinate

has the form

, where

is a constant. Assume that dimensions are appropriately taken care of. The electric flux through a sphere of radius

, centered at the origin, is

. What is the value of

(rounded off to two decimal places)?

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GATE PH purpose:exam-prep PYQs

Question 26

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Question 35