GATE PH kind:question PYQs & Answers — Page 51

Questions 501–510 of 650. Imported answers require independent review unless marked reviewed.

For the following circuit, the correct logic values for the entries

and

in the truth table are

G	B	P	C	X	Y
1	1	0	0	0	1
0	0	1	0
1	0	0	1	0	1

Your answerChoose one option.

1 and 0

0 and 0

0 and 1

1 and 1

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In a set of

successive polarizers, the

polarizer makes an angle

with the vertical. A vertically polarized light beam of intensity

is incident on two such sets with

and

, where

. Let the intensity of light beams coming out be

and

, respectively. Which of the following statements is correct about the two outgoing beams?

Your answerChoose one option.

; the polarization in each case is vertical

; the polarization in each case is horizontal

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A ball bouncing off a rigid floor is described by the potential energy function

Which of the following schematic diagrams best represents the phase space plot of the ball?

Your answerChoose one option.

Diagram for Physics question 38 (figure 2)

Diagram for Physics question 38 (figure 3)

Diagram for Physics question 38 (figure 4)

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An infinitely long wire parallel to the

-axis is kept at

and carries a current

in the positive

direction above a superconductor filling the region

(see figure).

The magnetic field

inside the superconductor is zero so that the field just outside the superconductor is parallel to its surface. The magnetic field due to this configuration at a point

Your answerChoose one option.

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The vector potential inside a long solenoid, with

turns per unit length and carrying current

, written in cylindrical coordinates is

. If the term

, where

is added to

, the magnetic field remains the same if

Your answerChoose one option.

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Low energy collision (

-wave scattering) of pion (

) with deuteron (d) results in the production of two protons (

). The relative orbital angular momentum (in units of

) of the resulting two-proton system for this reaction is

Your answerChoose one option.

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Consider the Hamiltonian

, where

and

are parameters with appropriate dimensions, and

and

are the generalized coordinate and momentum, respectively. The corresponding Lagrangian

Your answerChoose one option.

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For a given load resistance

, the power transfer efficiencies

of a dc voltage source and a dc current source with internal resistances

and

, respectively, are equal. The product

in units of

(rounded off to one decimal place) is

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The ground state electronic configuration of the rare-earth ion (Nd

) is [Pd]

. Assuming LS coupling, the Landé

-factor of this ion is

. The effective magnetic moment in units of Bohr magneton

(rounded off to two decimal places) is

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A projectile of mass 1 kg is launched at an angle of 30° from the horizontal direction at

and takes time

before hitting the ground. If its initial speed is 10 ms

, the value of the action integral for the entire flight in the units of kg m

(rounded off to one decimal place) is [Take

]

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GATE PH kind:question PYQs

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