Question # 1

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

Viscosity of water is ______ that of air but ___ that of plasma.

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More, more

Less, more

Less, less

More, less

When the shear stress and shear stain are involved, then their ratio is called

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Young's modulus

Bulk modulus

Shear modulus

all of them

The vibratory motion of a body whose magnitude of acceleration is directly proportional to the magnitude of its displacement and is always directed towards the equilibrium position is called

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rotatory motion

motion under gravity

angular motion

simple harmonic motion

Internal friction of fluid is called

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Surface tension

Viscosity

Resistance

Cohesive force

The velocity given to a body to go out of the influence of earth's gravity is known as:

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Terminal velocity

Orbital velocity

Escape velocity

None of these

For the conversion of galvanometer into voltmeter, we connect a

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small resistance in series with galvanometer

small resistance in parallel with galvanometer

high resistance in parallel with galvanometer

high resistance series with galvanometer

The example of reversible process is

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an explosion

changes occur suddenly

slow compression of a gas

all of them

In stationary waves

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Energy is uniformly distributed

Energy is minimum at nodes and maximum at antinodes

Energy is maximum at nodes and minimum at antidotes

Alternating maximum and minimum energy producing at nodes and antinodes

In which process the condition for the application of Boyle's law on the gas is fulfilled

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isochoric process

adiabatic process

isothermal process

none of them

Origin of the electric and the gravitational forces

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Was known in 1911 A.D.

Was known in 1811 A.D.

Was known in 1711 A.D.

is still unknown

Was known in 1611 A.D.

The dimensions of displacement is

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[ L ]

[ L²]

[ L³]

None of these

In Compton effect, it was considered that X-rays consist of:

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Electrons

Positrons

Photons

All of these

Fight of rocket in the space is an example of

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Newton's first law

Newton's third law

Newton's second law

all of them

The dimensions of intensity of energy are

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MLT⁺²⁷T¹

MLT²T²

ML³

MLT^-2T³

Curie is the unit of

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decay constant

activity

half-life

average life

Pressure exerted by a gas on the walls of its container is due to

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Adhesion between the gas molecules and the container

Cohesion between the gas molecules and the container

Collision between the gas molecules and the container

Surface tension of the gas

The work by the body is maximum when it has angle

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30^o

60^o

90^o

0^o

Monochromatic light directly means waves of

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Same frequency

Same color

Same wavelength

All of them

A prism splits a beam of white light into seven component colors. This is so because

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Phase of different colors is different

Amplitude of different colors is different

Energy of different colors is different

Velocity of different colors is different

Amorphous solids are more like

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crystalline solids

polymeric solids

glassy solids

any one of them

The SI unit of momentum is

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Kgms^-1

Kgms^-2

N.S

a and c

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