Question # 1

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

The L-C parallel circuit the capacitor draws a

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leading current

lagging current

main current

none of these

The induced current in a conductor depends upon:

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Resistance of the loop

Speed with which the conductor moves

Any of these

Both A and B

None of these

If the length of a simple pendulum is 0.25 m its time period would be

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1.0 s

2.0 s

3.0 s

4.0 s

According to the equation of continuity, when water falls from the tap, it's speed increases and its cross-sectional area

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decreases

increases

becomes zero

none of them

A body falls freely from rest. It covers as much distance in the last second of its motion as covered in the first three seconds. The body has fallen for a time of

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3 s

5 s

7 s

9 s

The torque per unit twist of coil is called

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proportionality constant

gravitational constant

boltzman constant

coupling constant

The solids which has structure in-between order and disorder are called

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amorphous solids

polymeric solids

crystalline solids

all of them

Surface density of charge is defined as

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Charge per unit volume

Charge per unit length

Charge per unit area

Charge per unit mass

Conversion of chemical energy to electrical energy can be achieved by:

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Primary cell

Secondary cell

Both (A) and (B)

Photovoltaic cell

Solar cell

Magnetic lines of force:

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Cannot intersect at all

Intersect at infinity

Intersect within magnet

Intersect at Neutral Point

None of these

In an ideal gas, the molecules have:

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Kinetic energy only

Potential energy only

Both KE and PE

None of these

When one mirror of Michelson interferometer is moved a distance of 0.5 mm. 2000 fringes are observed, the wavelength of light used is

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5000 nm

5000 A°

500 cm

2000 A°

The wavefront formed at very large distance from the source is:

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Cylindrical

Spherical

Elliptical

Plane

N-type crystal is

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Neutral

Positively charged

Negative charged

None of these

In nuclear fission reaction, when the products are 140X and 94Sr, the number of neutrons emitted is

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1

2

5

9

There will be no change in _______ of light entering glass

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Velocity

Frequency

Direction

Wavelength

Newton's first law of motion is also known as

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Law of motion

Law of mechanics

law of inertia

None of these

Refractive index of material depends upon

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Nature of material

Wave length

Temperature

All of these

The diode charactristics curve is plot between

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I & t

V& t

V& I

None

A non-inverting amplifier has infinite input resistance then the voltage gain of noninverting amplifier will be:

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Zero

Infinite

One

100

The turning effect of a force is called

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Acceleration

Torque

Velocity

Momentum

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