Question # 1

The analysis of fluid motion becomes simplified by using

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law of conservation

law of conservation of energy

both of them

none of them

When body moves with increasing acceleration, its velocity time graph is a

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straight line

horizontal straight line

vertical straight line

curve

The magnitude of the force producing an acceleration of 10 m/sec2 in a body of mass 500 grams is:

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3 N

4 N

5 N

6 N

Self inducede e.m.f. is also called

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Motional e.m.f.

Thermistor

Electrostatic induction

Back e.m.f

Zirconia is classified as:

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Ceramic solid

Ionic compound

Metal

Either (A) or (B)

Either (B) or (C)

Bernoulli's equation is important in the field of

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Electrical circuit

Magnetism

Photoelectric effect

Flow of fluids

A heater coil rated at (1000 W - 200 V) is connected to 110 volt line. What will be the power consumed?

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200 W

302.5

250 W

350 W

A voltmeter is used to measure the

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potential difference

current

temperature

resistance

To convert galvanometer into ammeter we connect

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small resistance in parallel with galvanometer

small resistance in series with galvanometer

high resistance in series with galvanometer

high resistance in parallel with galvanometer

A typical rocket consists of fuel

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more than 60% of launch mass

less than 60% of launch mass

less than 80% of launch mass

more than 80% of launch mass

A coil of constant area is placed in a constant magnetic field. An include current is produced in the coil when:

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The coil is destroyed

The coil is Rotated

The coil is neither destroyed nor rotated

Both (A) and (B)

None of these

A snooker ball moving with velocity v collides head on with another snooker ball of same mass at rest. If the collision is elastic, the velocity of second snooker ball is

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Zero

Infinity

V

2 V

Newton's rings are:

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Rectangular

Spherical

Concentric circles

None of these

Law of conservation of momentum has been verified for the

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Cosmological level

Microscopic level

Submicroscopic level

a and c

When crest of one wave falls on the crest of the other wave. This phenomenon is known as:

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Destructive interference

Diffraction

Polarization

Constructive interference

The insulators have conductivities ties in the range

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10^-10 to 10^-20 (Ωm)^-1

10^-5 to 10^-20 (Ωm)^-1

10^-15 to 10^-25 (Ωm)^-1

None of these

A string vibrates in 1 loop has frequency 25 Hz if it moves in 2 loops its frequencywould be:

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25 Hz

50 Hz

12.5 Hz

5Hz

The blood pressure of about 120 torr is called the

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Diastolic pressure

Systolic pressure

Minimum diastolic pressure

Dangerous blood pressure

A jet engine works on the principle of

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Conservation of linear momentum

Conservation of mass

Conservation of energy

Conservation of angular momentum

Two forces of 4 dyne and 3 dyne act upon a body.The resultant force on the body can only be

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Between 3 and 4 dyne

Between 1 and 7 dyne

More than 3 dyne

More than 4 dyne

The number of electrons emitted depend upon

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Colour of target surface

Shape of surface

Frequency of incident light

Intensity of incident light

The horizontal range of projectile, at a certain place, depends upon

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the mass of the projectile

velocity of projection

angle of projection

angel as well as velocity of projection

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