Question # 1

Which one of the followign Muslim mathmatision determined the earths circumference.

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Al Beruni

Ibn Sina

Al Khawrizmi

None of these

In case the work done in zero.

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Constant pressure

Constant volume

Constant temperature

Constant mass

The ability of a body to do work is called its

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Force

Power

Capacity

Energy

The unit of energy is same as that of

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Power

Work

Torque

Density

If 30 waves per second pass through a medium at a speed 30 ms-1, then the wavelength is.

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30 m

15 m

1 m

28 m

A quantity which indicates the state and direction of a vibrating body is known as

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Time period

Amplitude

Phase

Frequency

The magnifying power is also called

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Resolving power

Angular magnification

Strength of eye

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

Speed of sound in vacuum is

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280 ms-1

332 ms-1

333 ms-1

Zero ms-1

Vectors have

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Numerical value

Directional

Both a and b

None of these

The law of conservation of energy gives us

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Equation of continuity

Stock's law

Bernoulli's equation

Viscosity

P.E. of a spring is stored in

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Spring

mass

Both of them

None of these

Oscillation of shock absorber of a car is practical example of.

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simple harmonic motion

Forced oscillation

Damped oscillation

Undamped oscillation

Supplementary units are.

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Three

Two

Five

One

The units of magnifying power of microscope or telescope are.

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Metre

m^-1

dioptre

No unit

The word Fluid means

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To rise

To fall

To flow

To oppose

Which one of the following force cannot do any work on the particle on which it acts.

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Fractional force

Gravitational force

Electrostatic force

Centripetal force

Boltzman constant 'k' has same unit as.

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Temperature

Energy

Entropy

Pressure

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