Question # 1

The force between two chares 0.06 m apart is 5 N. If each charge is moved towards the other by 0.01 m, then the force between them will become

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7.20 N

11.25 N

22.50 N

45.00

When two objects are rubbed together, their internal energy

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remains same

decreases

remains the same then decreases

increases

Transverse waves can be set up:

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Solids

Liquids

Gases

All of them

The value for systolic blood pressure for a normal healthy person is

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140 torr

80 torr

90 torr

120 torr

At constant volume temperature is increased. Then

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Collision on walls will be less

Number of collisions per unit time will increase

Collision will be in straight lines

Collision will not change

An important part of photocopier is:

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Toner cartridge

Deflection plates

Charging electrode

Print head

None of these

A body with frequency of would complete one vibration in:

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f seconds

1/f seconds

1 second

f²second

A full-scale deflection is obtained in a galvanometer with a current of few

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ampere

volts

milliampere

ohm

Strength of magnetic field is measured in SI units, in:

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N

N/Am

Am/N

Nm/A

None of these

transverse wave motion is possible in:

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Air

A mixture of NH₃and O₂

Strings

All of these

The resistivity of a substance depends upon the

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length

mass

area

temperature

The current once established, does not require

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Current source

Source of emf

Induced current

None of these

At the point of contact of the lens and the glass plate, the incident and reflected rays interfere

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constructively

destructively

either of them

none of them

The direction of a ray of light is.......to the wave front.

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Parallel

Equal

Opposite

Perpendicular

When 400.1 is added to 20.54 we get

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420

420.65

420.1

420.6

Gravitation is the property of matter which is

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External

Internal

Intrinsic

None of these

High energy physics is the physics of

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Nucleus

Subatomic particles

Plasma physics

Astrophysics

Bouncing off the squash ball several times from wall bears no

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Total displacement

Average velocity

Both

None of these

Among the conservative forces, which one is the weakest ?

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Nuclear weak force

Electrostatic force

Gravitational force

None of these

The direction of torque is

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Along F

Along r

Perpendicular plant formed by F and r

None of these

Einsteins theory say that gravity

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Follows inverse square law

Donot follow the inverse square law

Very weakly follow inverse square law

None of these

The work done by the system on its environment is considered

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Natural

Positive

Negative

None of these

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