NEST (National Entrance Screening Test) Physics: Questions 34 - 36 of 58

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Question number: 34

» Oscillations and Waves » Simple Harmonic Motion » Energy

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Appeared in Year: 2014

MCQ▾

Question

Consider two identical masses attached to identical spring as shown in figure. They can be set in motion in two different ways as follows:

Here, and denoted the displacements from the unstretched positions. Then the potential energy stored in the system is

Figure of System of 3 springs and 2 masses

Figure of System of 3 Springs and 2 Masses

In figure system of 3 spring and 2 masses is shown

Choices

Choice (4) Response

a.

Smaller for than at

b.

Larger for than at

c.

Equal for than at

d.

Larger for than at

Question number: 35

» Physics and Measurement » Dimensional Analysis and Its Applications

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Appeared in Year: 2014

MCQ▾

Question

The dimensions of charge can be written in terms of length , energy , temperature , and permittivity of free space as . Here,

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 36

» Electrostatics » Electric Field Lines

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Appeared in Year: 2014

MCQ▾

Question

A positive point charge is placed near a three dimensional isolated, neutral solid conductor with a cavity as shown. The possible electric lines of force are best depicted in:

Choices

Choice (4) Response

a.

Electric force lines enter in solid : Choice – A

Electric Force Lines Enter in Solid: Choice – A

In figure electric force lines enter in solid is shown

b.

Electric force lines enter in solid : Choice – B

Electric Force Lines Enter in Solid: Choice – B

In figure electric force lines enter in solid is shown

c.

Electric force lines enter in solid : Choice – C

Electric Force Lines Enter in Solid: Choice – C

In figure electric force lines enter in solid is shown

d.

Electric force lines enter in solid : Choice – D

Electric Force Lines Enter in Solid: Choice – D

In figure electric force lines enter in solid is shown