Question # 1

Absolute temperature can be calculated by

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Means squares velocity

Motion of the molecule

Both A and B

None of these

A transistor has:

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One region

Two regions

Three regions

Four regions

None is correct

In series RC circuit when R=X_c, then the phase angle is

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0°

90°

70°

45°

When the body is moves against the force of friction on a horizontal plane, the work done by the body is:

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Positive

Negative

Zero

None of these

If the object is situated at focus of a convex lens, then its image is formed at:

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F

2F

Infinity

None of these

Method "lamp and scale arrangement" used to measure the

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angle of deflection

restoring torque

magnetic field strength

current

If 'V' is the relativistic speed and 'C' is the speed of light then according to Einstien the factor V/C must always be

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Equal to 1

Less than 1

Greater than 1

Infinity

Radian is defined as the angle subtended at the center of a circle by an arc of:

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Length equal to its diameter

Length equal to its radius

Any length

None of these

If the focal length of the convex lens is 5 cm, then to get the real and inverted image of the same size as that of object, the object should be placed at:

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5 cm

10 cm

15 cm

20 cm

Examples of crystalline solids are:

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Cooper

NaCl

Zirconia

Both (A) and (B)

All of these

Work is a

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Scalar quantity

Vector quantity

Base quantity

None of these

The dimensions of pressure are

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[ML²T^-2]

[ML-1T-2]

[M²LT^-1]

[M²LT^-2]

On the ground the gravitational force on a satellite is W. What is the gravitational force on the satellite when at a height R/50,where R is the radius of the Earth

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1.02 W

1.00 W

0.98 W

0.96 W

Colour of thin film will not show result from

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Scattering of light

Dispersion of light

Interference of light

Both a and b

Mathematically the vertical velocity component is

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In the stress-strain graph stress is increased linearly with strain until a point is reached this point is known as

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Plastic limit

Plastic deformation

Proportional limit

Elastic behaviour

Basic part or parts of a heat engine

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Source

Sink

Working substance

All of these

When a body is moving on a surface the force of friction is called

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Static friction

Dynamic firction

Limiting friction

Rolling friction

1 year = ______.

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3.1536 x 10⁷s

3.1536 x 10^-7s

3.1536 x 10¹⁰s

3.1536 x 10^-10s

Viscosity of methanol at 30^oC in NSm^-2

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0.341 × 10^-3

0.357 × 10^-3

0.369 × 10^-3

0.510 × 10^-3

X-rays is a type of electron magnetic radiations of much shorter wavelengths of the order of

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10^-8 m

10^-9 m

10^-10 m

10^-12 m

The sink in the heat engine is at

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Low temperature

High temperature

Zero temperature

None of these

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