GATE PH format:mcq PYQs & Answers — Page 33

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Questions 321–330 of 380. Imported answers require independent review unless marked reviewed.

Topic practice 380 questionsPage 33 of 38

Match the physical effects and order of magnitude of their energy scales given below, where

is fine structure constant;

and

are electron and proton mass, respectively.

Group I	Group II
P: Lamb shift	1:
Q: Fine structure	2:
R: Bohr energy	3:
S: Hyperfine structure	4:

Your answerChoose one option.

P-3, Q-1, R-2, S-4

P-2, Q-3, R-1, S-4

P-4, Q-2, R-1, S-3

P-2, Q-4, R-1, S-3

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The logic expression

can be simplified to

Your answerChoose one option.

A XOR C

A AND

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At low temperatures (

), the specific heat of common metals is described by (with

and

as constants)

Your answerChoose one option.

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In a 2-to-1 multiplexer as shown below, the output X = A₀ if C = 0, and X = A₁ if C = 1. Which one of the following is the correct implementation of this multiplexer?

Your answerChoose one option.

Diagram for Physics question 13 (figure 2)

Diagram for Physics question 13 (figure 3)

Diagram for Physics question 13 (figure 4)

Diagram for Physics question 13 (figure 5)

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The elementary particle

is placed in the baryon decuplet, shown below, at

Your answerChoose one option.

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The intrinsic/permanent electric dipole moment in the ground state of hydrogen atom is (

is the Bohr radius)

Your answerChoose one option.

zero

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The high temperature magnetic susceptibility of solids having ions with magnetic moments can be described by

with

as absolute temperature and

as constant. The three behaviors i.e. paramagnetic, ferromagnetic and anti-ferromagnetic are described, respectively, by

Your answerChoose one option.

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Which one of the following is an allowed electric dipole transition?

Your answerChoose one option.

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In the decay,

, what is

Your answerChoose one option.

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Given

and

, which one of the following

makes

a complete set for a three dimensional real linear vector space?

Your answerChoose one option.

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GATE PH format:mcq PYQs

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