Question # 1

The resonance will be sharp, if the amplitude decreases rapidly at a frequency

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equal to the resonant frequency

slight different from the resonant frequency

greatly different from the resonant frequency

any one of them

In rotational motion, analogue of force F us called:

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Couple

Torque

Mass

Moment of intertia

Drag force increases if speed of the object moving through the fluid:

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Increases

Decreases

Remains constant

None of these

Resonance occurs when one of the natural frequencies of vibration of the forced or driven harmonic oscillator

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greater than the frequency of applied force

equal to the frequency of applied force

less than the frequency of applied force

all of them

Which one is the least multiple

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Pico

Femto

Nano

Atto

A rotating body tends to be slower, when its angular acceleration is:

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Positive

Negative

Zero

Infinity

Substances that flow easily have

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large coefficient of viscosity

small coefficient of viscosity

either of them

none of them

Amount of heat required to raise the temperature of a body through 1 K is called its

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Specific heat

Water equivalent

Thermal capacity

Entropy

In case of metallic conductors, the change carries are:

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Protons

Electrons

Antiprotons

Positrons

Both (A) and (B)

Energy stored in the spring of a watch is called

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Potential energy

Kinetic energy

Nuclear energy

Elastic potential

The mass 'm' of a body moving at 0.8 c (whose rest mass is mo) becomes

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2 mo

1.67 mo

0.67 mo

2.67 mo

A motorist travels A to B at a speed at 40 km/h and returns at speed of 60 km/h.His average speed will be.

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40 km/h

48 km/h

50 km/h

60 km/h

Random error occurs when repeated measurements of the quantity under the same conditions gives

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Equal values

Different values

Increasing values

None of these

Carnot cycle is:

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Reversible

Irreversible

Sometimes A, Sometimes B

None of these

When a stress changes the volume, it is called the

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compressional stress

tensile stress

shear stress

any one of them

Newtons second law of motion is also called

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Law of inertia

Law of acceleration

Law of force

None of these

Newtons first law of motion says a body will

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Remains at rest

Continuous move to with uniform velocity

Have no unbalanced external force act

All of these

A body of mass 5 kg is moving in a circle of radius 1 m with an angular velocity of 2 rad/s.The centripetal force is

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10 N

20 N

30 N

40 N

The force which aries when one layers of liquid slides over another layer is measure by

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Viscosity

Velocity

Momentum

Acceleration

The capacity of two way telephone circuits of INTESAT VI satellite is circuits

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10, 000

20,000

30,000

40,000

The locus of all points in a medium having same phase of vibration is called:

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Crest

Trough

Wavelength

Wavefront

A force passing through the centre of gravity of a body

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Causes translation motion

Causes rotational motion

Produces no motion in the body

Produces both translational and rotational motion

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