GATE (Graduate Aptitude Test in Engineering) Physics: Questions 74 - 79 of 659

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Question number: 74

» Electronics » Registers

Appeared in Year: 2015

MCQ▾

Question

Which one of the following DOES NOT represent an exclusive OR operation for input A and B?

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 75

» Classical Mechanics » Lorentz Transformations

Appeared in Year: 2014

MCQ▾

Question

Which one of the following quantities is invariant under Lorentz transformation?

Choices

Choice (4) Response

a.

Charge

b.

Electric field

c.

Charge density

d.

Current

Question number: 76

» Quantum Mechanics » Angular Momentum and Spin

Appeared in Year: 2015

MCQ▾

Question

Let L and p be the angular and linear momentum operates, respectively for a particle. The commutator gives –

Choices

Choice (4) Response

a.

b.

0

c.

d.

Question number: 77

» Electromagnetic Theory » Electromagnetic Waves and Their Reflection

Appeared in Year: 2014

Short Answer Question▾

Write in Short

The electric field of a uniform plane wave propagating in a dielectric, non – conducting medium is given by,

The phase velocity of the wave is ________

Question number: 78

» Nuclear and Particle Physics » Conservation Laws

Appeared in Year: 2015

MCQ▾

Question

The decay is forbidden, because it violates –

Choices

Choice (4) Response

a.

Baryon and lepton number conservation

b.

Angular momentum conservation

c.

Momentum and lepton number conservations

d.

Lepton number conservation

Question number: 79

» Nuclear and Particle Physics » Nuclear Models

Appeared in Year: 2014

Short Answer Question▾

Write in Short

For Nickel the number density is and electronic configuration is . The value of the saturation magnetization of Nickel in its ferromagnetic state is .

(Given the value of Bohr magneton )

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