Question # 1

Unit of impulse is equivalent to that of.

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Force

Momentum

Acceleration

Velocity

When two identical waves superimposed, which can change.

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Wave length

Frequency

Velocity

Amplitude

Environmental crisis are also known as

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Population crisis

Entropy crisis

War crisis

Mass crisis

The device used to study the spectra from different sources of light is

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Telescope

Optical fibre

Spectrometer

Microscope

The direction of null vector can be

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(+) ve

(-) ve

Arbitrary

Zero

When a body is whirled in a horizontal circle by means of string, the centripetal force is supplied by

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Mass of body

Velocity of a body

Tension in the string

Centripetal acceleration

One complete round trip of a vibrating body is called.

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Frequency

Time period

Vibration

Amplitude

The mass of an object is quantitative measure 0 its

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Momentum

Acceleration

Inertia

Energy

Hygen's principle is used for.

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Explain polarization

Locate the wave front

Find the speed of light

Find the index of refraction

The artificial satellites are held in orbits by

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Gravitational force

Electric force

Magnetic force

All of these

The regular or steady flow of fluid is called

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Stream line

Turbulent flow

Average flow

None of these

The profile of periodic waves generated by a source executing S.H.M is represented by a.

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Circle

Sine curve

Tangent curve

Cosine curve

The dimensions of work are

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MLT^-1

MLT^-2

ML²T^-2

ML^-1T^-1

When ever the path difference between the waves is integral multiple of half the wavelength, interference will be

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Constructive

Destructive

(-)ve

(+) ve

For an ideal gas, the internal energy is directly proportional to.

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Pressure

volume

Mass

Temperature

Head to tail rule is used for

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Addition of vectors

Subtraction of vectors

Multiplication of vectors

Division of vectors

On loading the prong of a tuning fork with wax, the frequency of sound.

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Increases

Decreases

Remains same

First increases then decrease

Height of projectile is maximum at an angle of.

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45^o

60^o

30^o

90^o

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Physics Fsc Part 1 Online Test MCQs With Answers

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