Question # 1

Slope of velocity time graph describes a physical quantity called.

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Displacement

Average velocity

Average acceleration

Momentum

The Branch of hysics wave mechanics introduced by

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einstein

De broglie

Max Planck

Bohar

The process followed by Newton for the determination of speed of sound in air is

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Adiabatic

Isothermal

Isobaric

Isochoric

In rotational motion the torque is equal to rate of change of

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Angular velocity

Linear momentum

Angular momentum

Angular acceleration

Angular velocity determines, How fast or, How slow a body is

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Accelerating

Vibrating

Rotating

Oscillating

The SI unit of work is

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Newton

Joule

Mol

Calorie

A force applied on a body produces acceleration in

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Opposite direction

perpendicular direction

Its own direction

In any direction

At constant temperature and pressure, if volume of given mass of a gas is doubled then density is.

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Doubled

1/4 original

1/2 of original

Unchanged

The system international SI built up from

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Derived Units

Supplementary units

Basic Units

All of these

The acceleration produced by elastic restoring force is

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Perpendicular to force

Opposite to force

In same direction as force

Zero

Value of triple point of water is given as.

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Zero K

100 K

273.16 K

373.16 K

The mass of a body is quantitative measure of its

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Motion

Inertia

Weight

All of these

Two tunign forks of frequencies 260 Hz and 256 Hz are sounded together , the number of beats per second is.

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2

258

516

4

Efficiency of steam locomotive is.

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8%

10%

9%

7%

Time rate of change of angular displacement is called

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Linear velocity

Angular velocity

Rotational velocity

Vibrational velocity

All point of the rigid body rotating about a fixed axis do not have same.

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Angular acceleration

Angular speed

speed

Angular displacement

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

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Karachi

K-2

Murree

Lahore

One complete round trip of a vibrating body is called.

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Frequency

Time period

Vibration

Amplitude

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