Question # 1

The magnetic field inside solenoid is given:

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μ_∘nI²

μ_∘nI

μ_∘n/1²

μ_∘I/n

If an object moves with speed of light, its mass will be.

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Zero

Maximum

Minimum

infinity

Study of hydrogen visible spectrum in

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1886

1887

1895

1885

The materialization of energy take place in the process of.

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Photo electric effect

Compton Effect

Pair production

Annihilationof matter

The energy of 4th Orbit in hydrogen atom is.

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-2.51 eV

-3.50 eV

-13.60 eV

-0.85 eV

A capacitor stores energy in the form of.

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Magnetic field

Heat energy

Electrical energy

Mechanical energy

Energy density of an inductor is:

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UM=1/2μ_∘/B²

Um = 2μ_∘/B

UM = 1/2B²/μ_∘

Um = 2B²/μ_∘

When a pot difference of 4 volt is applied across resistance, 10 J of energy is converted Find charge flows

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0.20 C

2.5 C

5.0 C

10.0 C

The self induction emf is some times called.

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Motional emf

Constant emf

Back emf

Variable emf

Two oppositely charged balls A and B attract the third ball C, when placed near them turn by turn The third ball C must be.

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Positively charged

Negatively charged

Electrically neutral

Positively and negatively charged

The jerks in D.C. motor are created by the use of.

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Armature

Commutators

Split rings

Source of emf

Concept of the electric field lines is introduced by

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Coulomb

Faraday

Einstein

Joseph henry

A device that shows the visible path of ionizing particle is called.

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GM counter

Solid state detector

Scalar

Wilson cloud chamber

Electro magnetic waves emitted from radio antenna are.

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Stationary

Longitudinal

Transvers

Both a and b

Bottom quark carries charge :

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2/3 e

-2/3 e

+1/3 e

-1 /3 e

The quantity/factor h/m_oc has the dimensions of.

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Length

Time

Mass

Energy

The fact that electric field exist in space around an electrical charge is

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Electrical property

Gravitational property

Intrinsic property of nature

Extrinsic property of nature

Average value of current and voltage over a complete cycle is.

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Positive

Negative

Zero

Infinite

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Ics Part 2 Physics Test Online MCQs With Answers

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