Question # 1

Which of the following does not reflect the laws of static charges.

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like charges repel

Opposite charges attract

Neutral charges repel

Neutral objects are attracted to charged ones.

As a positively charged rod is brought closer and closer to a positively charged electroscope the gold leaf.

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diverges

Converges

is neutralized

Is unaffected

The basic quantity used to describe the state of magnetization of a substance is the

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Magnetic strength

Magnetic susceptibility

Magnetic moment

Magnetic moment per unit volume

Which of the following is most suitable for the core of the electromagnetism

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Air

Steel

Su Ni allow

Soft iron

If the source of emf is traversed from negative to positive terminal the potential charge.

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Is negative

Is positive

Is zero

Remain the same

The horizontal range is equal for the angles.

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30 ^o and 45 ^o

30 ^oand 60 ^o

45 ^o and 90 ^o

60 ^oand 75 ^o

A thin layer of oil the surface of water looks coloured due to.

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Pillarization of light

Different elements present in the oil

Interference of light

Transmission of light

On which factor cut off wavelength of X-rays coming from a Coolidge tube depends upon.

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Target material

Accelerating voltage

Filament temperature

Separation between target and the filament

In the circult, the ammeter reading is 0.5 A . If the resistance of the voltmeter is 180Ohm What is the voltmeter rediang.

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90 V

100 V

180 V

900 V

The ration Cv/Cp = y for a diatomic gas like air is

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1.29

1.30

1.40

1.67

If a capacitor is charged by using a 1.5 V battery, how much charge will capacitor gain.

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0 V

0.5 V

1.5 V

3 V

Which technique uses underwater sound propagation to detect and locate submerged objects.

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RADAR

LIDAR

SONAR

LASER

The dimensions of viscosity are

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[MLT-1]

[MT-2]

[ML-1T-1]

[ML2T-1]

who discovered taht mass and energy are forms of each other.

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Issac Newton

Albert Einstein

Galileo

Khawarizmi

In a magnifying glass, the objective is placed at a distance

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Less than the focal

Between the focal length and twice the focal length

Greater than twice the focal length

At the focus of the lens

An instrument which can float in the liquid to be tested and by means of which the specific gravity of the liquid may be determined is.

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Hydrometer

Barometer

Siphon

Lactometer

The advantage of LEDs over filament lamp is their

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Small size

Reliability

High operating speed

All of the above

A deuteron is

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A type of proton

A proton neutron bounded to gather.

A type of beta particle

A type of neutron

X-rays used for

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Cutting boring and precision welding

Retina stitching in eye operations

Detecting heavy elements under the earth

Deflecting flaws in welding and casting

Mutual inductance has a practical role in the performance of the

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Radiochoke

Transformer

Generator

Trnasistor

In any collision between two bodies there need nor the conservation of

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Linear momentum

Angular momentum

Total energy

Kinetic energy

The ratio between the energy dissipated in some process and the heat that appears as a result is the

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Specific heat

Mechanical equivalent of heat

Kilocalories

Triple point

Mean free path of gas molecules in inversely proportional to its.

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Weight

Temperature

Pressure

Volume

Periodic motion is a motion.

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Under the influence of an elastic restoring force

That repeats it self in equal intervals of time

Back and forth over the same path

With constant acceleration

Liquids with disordered structure frozen in are an example of

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Amorphous solids

Glassy solids

Crystalline solids

Polymeric molecules

Davision and Germer got Nobel prize for their work on

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The dual nature of particles

The wave nature of particles

The corpuscular nature of particles

All of the above

The action and reaction forces

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Must act upon the same body

Must act upon different bodies

Must be equal in magnitude but need not have the same line of action.

Different speed at the different height during ascent and during descent.

The cosine of the phase angle between the current and voltage in an A.C. circuit is called the

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Lead factor

Lag factor

Dissipation factor

Power factor

Select the one that is not a donar

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P

AS

Sb

In

Who designed the atomic reactor.

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Wilson

Rutherford

Teller

Fermi

Which characteristics successively increases in the musical scale.

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Pitch

Quality

Loudness

Amplitude

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