Question # 1

Direction of a vector in space requires

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Two axis

Three axis

Four axis

Both a and b

The mass of an object is quantitative measure 0 its

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Momentum

Acceleration

Inertia

Energy

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

A gas performs 10 J of work while expanding adiabatically. the change in its internal energy is.

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10 J

-10 J

100 J

-200 J

the systolic pressure of normal healthy person is.

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120 torr

130 torr

115 torr

110 torr

The Newton's formula for the speed of sound in air is

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The flow of a fluid is of

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One type

Two types

Three types

Four type

The to and fro motion of a body is called

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Linear motion

Rotational motion

Vibratory motion

None of these

The speed of sound is greater in solids due to their high.

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Density

Pressure

Temperature

Elasticity

The amount of inertia of 10 kg hoop about the axis of rotation perpendicular to its plane having radius 5 m is

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50 kgm2

100 K gm2

150 K gm2

250 K gm2

The phenomenon of polarization of light reveals that sun light is

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Longitudinal waves

Transverse wave

Electromagnetic waves

Monochromatic wave

When distance is plotted against the force, it is taken along

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x-axis

y-axis

z-axis

None of these

Slope of velocity time graph describes a physical quantity called.

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Displacement

Average velocity

Average acceleration

Momentum

The potential energy to the molecules of an ideal gas is considered to be.

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Maximum

Zero

1/2 kx²

1/2 kx

Frequency range of hearing of cats is.

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20-20000 Hz

10- 10000 Hz

60-20000 Hz

60-70000 Hz

The efficiency of diesel engine is about

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25% to 30%

35% to 40%

40% to 50%

50% to 60%

In stationary waves, the particle velocity at nodes is

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Minimum

Maximum

Zero

Constant

If the slope of a velocity time graph gradually decreases than body is said to be moving with

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Positive acceleration

Negative acceleration

Uniform velocity

None

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