Question # 1

A device based upon the thermodynamics property of matter is called.

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Calorimeter

Heat engine

thermometer

Voltmeter

The instrument which detects the instant as which the external pressure becomes equal to the systolic pressure is called.

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Manometer

Sphygmomanometer

Barometer

Stethoscope

The ratio of the velocities of wate in a pipe lying horizontally at two ends is 1 : 4 The ratio of diameters of pipe at these two ends is.

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1 : 2

2 : 1

1 : 4

4 : 1

If focal length of objective and eye piece is 0.5 m and 10 cm respectively then magnifying power of telescope will be.

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0.5

5

10

20

Cloud formation in atmosphere is an example of.

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Isothermal process

Isochoric process

Adiabatic process

Isobaric process

A man of 5000 kg moves with an acceralation of 1 ms-2 force acting on it is.

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5 N

500 N

50 N

5000 N

The distance between two consecutive crests of troughs is called

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Time period

Wave length

Frequency

Displacement

Not change in entropy of a system after one complete Carnot cycle is.

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Positive

Negative

Zero

None of these

Which phenomenon of light proves that light waves are transverse in nature.

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Refraction

Reflection

Diffraction

Polarization

The amplitude of a vibrating body at resonance in vacuum is

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Minimum

Maximum

Zero

Infinite

A spring of spring constant 10 N/m after loading that amplitude is 2m. Then the maximum P.E. is

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10 J

20 J

30 J

40 J

A ball is thrown up with 20 ms-1 at an angle of 60 ^owith x-axis , the velocity of the ball at the top position is.

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0 ms-1

10 ms-1

20 ms-1

16 ms-1

the velocity of sound at 0 ^oC is 332 ms-1, the velocity of sound at 10 ^oC will be

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337.1 ms-1

338.1 ,ms-1

342.1 ms-1

328.1 ms-1

Sodium chloride in a flame gives

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Green light

White light

Red light

Yellow light

A body of mass 1.0 Kg dropped from the top of a tower of highest 50 m, what will be its K.E. 10 m below the top

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400 J

490 J

49 J

98 J

The shortest distance between two points is called

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Distance

Amplitude

Displacement

Is a number

The frictional effect between the different layers of fluid is called

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Terminal velocity

Stock's law

Viscosity

Surface tension

A typical rocket consumes fuel about

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40000 Kgs-1

30000 Kgs-1

20000 Kg s-1

10000 Kgs-1

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