GATE Physics: Questions 116 - 119 of 323

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Question number: 116

» Classical Mechanics » Moment of Inertia Tensor

Appeared in Year: 2012

MCQ▾

Question

Two uniform thin rods of equal length L and masses M1 and M2 are joined together along the length. The moment of inertia of the combined rod of length 2L about an axis passing through the mid – point and perpendicular to the length of the rod is –

Choices

Choice (4) Response

a.

(M1+M2)L23

b.

(M1+M2)L212

c.

(M1+M2)L22

d.

(M1+M2)L26

Question number: 117

» Electronics » Basic Digital Logic Circuits

Appeared in Year: 2016

MCQ▾

Question

For the digital circuit given below, the output X is –

Digital circuit of three different gates

Digital Circuit of Three Different Gates

In figure a digital circuit diagram of three gates NOT, OR and NAND are shown.

Choices

Choice (4) Response

a.

A+BC¯

b.

A¯(B+C)¯

c.

A¯+BC¯

d.

A¯(B+C)

Question number: 118

» Classical Mechanics » Small Oscillations and Normal Modes

Appeared in Year: 2012

MCQ▾

Question

A particle of unit mass moves along the X – axis under the influence of a potential, V(x)=x(x2)2 . The particle is found to be in stable equilibrium at the point x=2 . The time period of oscillation of the particle is –

Choices

Choice (4) Response

a.

π

b.

π2

c.

3π2

d.

2π

Question number: 119

» Electromagnetic Theory » Poynting Vector

Appeared in Year: 2016

MCQ▾

Question

The electric field component of a plane electromagnetic wave travelling in vacuum is given by E(z,t)=E0cos(kzωt)i^ . The Poynting vector for the wave is –

Choices

Choice (4) Response

a.

(cε02)E02cos2(kzωt)k^

b.

cε0E02cos2(kzωt)k^

c.

cε0E02cos2(kzωt)j^

d.

(cε02)E02cos2(kzωt)j^

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