Question # 1

According to the Bernoulli's theorem the pressure velocity are

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equal to each other

proportional to each other

inversely proportional to each other

none of them

The portion of the water above its mean level forms a:

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Crest

Trough

Both A and B

None of these

Taking the earth to be a spherical conductor of diameter 12.8 x 10³km. Its capacity will be

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711μF

611μF

811μF

511μF

Pressure exerted by a gas is

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Independent of density of the gas

Inversely proportional to the density of the gas

Directly proportional to the square of the density of the gas

Directly proportional to the density of the gas

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

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JC^-1

Vm^-1

Cm^-1

CJ^-1

When a mass 'm' is pulled slowly through a distance 'x_o' , the elastic potential energy of the spring would be

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P.E=Kx²_o

P.E= 1/2kx_o

P.E=1/2Kx²_o

P.E=Kx²_o

In case of an ideal gas, the P.E associated with its molecule is

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maximum

zero

minimum

not fixed

Waves transport energy

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without transport energy

with matter

both of them

none of them

A resonance curve for RLC series circuit is a plot of frequency versus

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Voltage

Current

Impedance

Reactance

Bernoulli's equation is based upon law of conservation

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Mass

Momentum

Energy

None of these

In above figures, tell which set of graphs shows that a body is moving with uniform velocity:

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(i) and (ii)

(ii) and (iii)

(iii) and (iv)

Phase change of 180° is equivalent to a path difference of

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2λ

λ

λ/2

λ/4

Shear modulus for mercury is

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0

12

27

42

Wave length of red colour as compared to that of violet colour is:

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Smaller

Longer

Equal

None of these

The principle of rocket motion is based on the

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First law of motion

Second law of motion

Third law of motion

None of these

In semiconductors, the valence band at room temperature is

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Completely filled

Partially filled

Empty

None of these

The magnetic field produced due to the current in a straight wire is proportionalto the :

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Electric current

Conducting material

Length of the wire

Diameter of the wire

The path difference and phase difference are related to each other as

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Phase difference = (2π) x path difference

Phase difference = (2π/λ) x path difference

Phase difference = (λ/2) x path difference

Phase difference = (2λ/π) x path difference

Which of the fluid has ideal behaviour at low speeds

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Air

Blood

Honey

None of these

Angle subtended by any side of the eight-sided mirror at the center is

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π/8

π/4

2π/8

2π/4

The capacity of a parallel plat capacitor depends on the

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Type of metal used

Thickness of plates

Potential applied across the plates

Separation between the plates

At what point/points in its path does a projectile have its maximum speed ?

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At the point of projection

At the point where its strikes the ground

Both

None of these

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