Question # 1

A body is moving with constant velocity of 10 m/sec in the north east direction. Then its acceleration will be:

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10 m/sec2

20 m/sec2

30 m/sec2

Zero

The L-C parallel circuit the capacitor draws a

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leading current

lagging current

main current

none of these

When the upward drag force of the fluid becomes equal to downward force of gravity of the droplet, then its velocity:

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Starts increasing

Starts decreasing

Becomes constant

Is called escape velocity

The mass of an object will be doubled at speed

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1.6 x 10⁸ms^-1

2.6 X 10⁸ms^-1

2.6 x 10⁷ms^-1

2.6 x 10⁹ms^-1

Gas constant per molecule is called:

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Universal gas constant

Stefen's constant

Boltzmann constant

Gravitation constant

If the distance between two charges is doubled, the force between them will become:

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Double

Half

Three times

One fourth

One third

Conversion of A.C. into D.C. is called:

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Reftification

Amplification

Electric induction

Magnetic induction

None of these

The field around a moving charge is called

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magnetic field

conservative field

non-conservative field

none of these

Which one of the following is the unit of electric field intensity

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JC^-1

Vm^-1

Cm^-1

CJ^-1

Work done on a body by gravity in lifting it up to certain height is

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Maximum

Minimum

Zero

Negative

How much force is required to slide one layer of the liquid over the other layer is measured by

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friction

density

viscosity

resistivity

The value of shear modulus is zero for:

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Water

Mercury

Diamond

Both (A) and (B)

Both (A) and (C)

Every streamline can

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Not cross each other

Cross each other

Some what cross each other

None of these

Two forces are acting together on an object.The magnitude of their resultant is minimum when the angle between the force is:

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0°

60°

120°

180°

In the phenomenon of hysteresis, the magnetism and magnetizing current behaves as

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I lags

1 leads B

I & B becomes equal

None of these

According to Huygen's principle, the new position of the wavefront after a time can be found by constructing a surface that touches all the

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primary wavelets

secondary wavelets

either of them

none of them

the ratio of mean K.E of chlorine and oxygen molecules at same temperature is

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16 35.5

35.5 16

(35.2)²16

1 1

Which one of the following phenomenon cannot be explained on the bases of Huygen's theory?

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Refraction

Reflection

Diffraction

Formation of spectrum

Laws of motion are not valid in a system which is

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inertial

non-inertial

at rest

moving with uniform velocity

In uniform circular motion the angular acceleration vector is

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Constant in magnitude and direction both

Constant in magnitude only

Constant in direction only

Varies in magnitude and direction both

Under what circumstance would a vector have components that are equal in magnitude ?

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45^o , 145^o , 245^o

135^o , 225^o

45^o , 135^o , 225^o and 315^o

None of these

Thick tar and honey have

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Small coefficient of viscosities

Large coefficient of viscosities

Zero coefficient of viscosities

Moderate coefficient of viscosities

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