Question # 1

The basic circuit element in a d.c. circuit is a/an

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Inductor

Resistor

Capacitor

Battery

The existence of position was predicted by Dirace in

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1920

1925

1930

1928

Sound waves in air always

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Longitudinal

Transverse

Stationary

Electromagnetic

The equation of continuity

A₁V₁= A₂V₂is for the flow of

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an ideal fluid

an incompressible fluid

a non visconcous fluid

all of the above

The SI units of momentum is

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kg m s^-2

kg ms

kg m s²

N-s

A particle moving uniformly along circle its projection along diameter performs

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Linear motion

Projectile motion

SHM

Rotatory motion

When quarter of a circle is completed, phase of vibration is:

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90°

180°

45°

360°

If we draw a graph between d (along x-axis) and F (along y-axis) and get a straight line horizontal to x-axis, then area under this straight line represents:

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Power

Work

Pressure

None of these

Pair production is the phenomenon in which

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matter is converted into energy

energy is converted into matter

light is converted into electrical energy

electrical energy is converted into light

Shock absorber of the car is an example of

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resonance

forced oscillations

interference

damped oscillations

The use of chips in electrons is described in the form of:

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Yellow boxes

Black boxes

Red boxes

White boxes

Orange boxes

The typical speed of Moon around the Earth is

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1000 ms^-1

2000 ms^-1

3000 ms^-1

4000 ms^-1

The example of vector product is

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Torque

Tangential velocity

Angular momentum

All of these

Whenever high magnification is desired

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A telescope is used

A compound microscope is used

A microscope is used

None of these

Velocity time graph can also be used to determine

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Distance

Velocity

Acceleration

None of these

Displacement is a physical quantity, which is a

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Scalar

Vector

Variable quality

None of these

In compound microscope image formed is

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Real erect and diminished

Virtual inverted magnitude

Real inverted and magnified

Virtual inverted and magnified

If the distance between two masses is doubled, the gravitational attraction between them

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Is doubled

Becomes four times

Is reduced to half

Is reduced to a quarter

We can achieve polarization by

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Absorption

Reflection

Scttering

All of above

The size of the domains in such that they can contain

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10²to 10⁴atoms

10⁴to 10⁸atoms

10⁸to 10¹²atoms

10¹²to 10¹⁶atoms

The length of the standard metre measured by Michelsion's interferometer comes out to be

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1,553, 163.5 wavelength

1553.5 wavelength

155316.5 wavelength

none of them

The SI units of impulse are

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Nm

Nm²

Nm^-1

Ns

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