Question # 1

The actual efficiency of property turned petrol engine is.

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20% to 30%

30% to 35%

40% to 45%

25% to 30%

At which place the motion of a simple pendulum will be slowest.

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Karachi

K-2

Murree

Lahore

the louder the sound, the greater will be its.

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Speed

Frequency

Amplitude

Wave length

Radar system is an application of.

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Chemical effect

Electric effect

Magnetic effect

Doppler's effect

The produce oscillation, body is pulled away from its

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Mean position

Extreme position

Both a and b

None of these

The frequency of 2nd pendulum is

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0.5 Hz

1 Hz

1.5 Hz

2 Hz

The dimensions of angular velocity are

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[LT-1]

[LT-2]

[T-1]

[L-1T-1]

Height of geo stationary orbit of the satellite above the earth is.

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300 km

250 km

400 km

None of these

When the body moves with constant acceleration the velocity time graph is

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Parabola

Hyperbola

Straight line

Curve

_______ is bio fuel

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Water

Petrol

Ethanol

Oil

The direction of vector in space is specified by

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1- angle

2- angle

3- angle

4 - angle

Which remains constant in an adiabatic process.

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Volume

Pressure

entropy

temperature

Venturimeter is used ot measure.

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Speed of fluid

Pressure of fluid

Volume of fluid

Mass of fluid

the acceleration of a body having SHM, depends upon its.

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Time period

Amplitude

Frequency

Displacement from mean position

Kilo watt hour is the unit of

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Power

Energy

Force

Torque

A 2 meter of high tank is full of water. If a hole appears at its middle, then the speed of efflux is.

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4.4 ms-1

10 ms-1

6.2 ms-1

20 ms-1

The wavelength of fundamental note in one end closed pipe in term of length 'l' of pipe is.

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4 l

2l

l

1/4 l

Vectors have

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Numerical value

Directional

Both a and b

None of these

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