Question # 1

From sand, we get a material used for construction with the motion of bodies under the action of forces is called:

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Optics

Mechanics

Thermodynamics

Astrophysics

Substances that do not flow easily have

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large coefficient of viscosity

small coefficient of viscosity

either of them

none of them

The temperature at which the vibrations become so great that structure of the Crystal breaks up, is called:

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Critical temparature

Temperature of vaporization

Melting point

Both (A) and (C)

Both (A) and (B)

Max plank founded a mathematical model resulting in an equation that describes the shape of observed black body radiation curves exactly, in

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1890

1895

1900

1905

When a body moves against the force of friction on a horizontal plane, the work done by the body is:

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Positive

Negative

Zero

None of these

The molecules or ions in a crystalline solids are

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static

not static

randomly moving

all of them

Newton's law of motion do not hold in

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an accelerated frame of reference

an unaccelerated frame of reference

both of these

none of these

The appearance of the colour in the soap (oil) film results from:

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Dispersion

Interference

Reflection

Refraction

In a soft iron, domains are

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easily oriented along external field and do not return to original random positions

easily oriented along external field and readily returns to originally random position

do no oriented along external field and also do not returns to originally random position

none of them

F = I(L x B) is a

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vector

scalar

unit vector

none of these

When a body is moves along a circular path with constant speed, it has an acceleration, which is always directed:

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Along the tangent

Toward the centre

Away from the centre

None of them

Once heat is transferred to an object, it is converted into the

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Entropy of the object

Internal energy of the object

Temperature of the object

None of these

The measure of deformation of a solid when stress is applied to it is called

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Strain

Stress

Force

None of these

A charge is placed at the centre of cube,the flux emitted through its one face is

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q/ε_∘

q/2ε_∘

q/6ε_∘

q/12ε_∘

A certain noninverting amplifier has R1 of 1 kΩ and R2 of 100 kΩ. The closed-loop voltage gain is ………

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100,000

100

1000

101

Newtons first law of motion says a body will

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Remains at rest

Continuous move to with uniform velocity

Have no unbalanced external force act

All of these

Find the range of the projectile, having speed 30 ms^-1in a direction 30° above the horizon

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50 m

80 m

90 m

100 m

The momentum of a body is p and its kinetic energy is E its momentum become 2p its kinetic energy will be

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E/2

3E

2E

4E

A tritium and alpha particle enter the magnetic field with same kinetic energy, what will be the ratio of their radii?

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3:4

√3: 1

√3: 4

√3:√2

Is the Gravitational force is conservative ?

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Yes

No

A little

None of these

The dimensions of Planck's constant is equal to that of

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Energy

Momentum

Angular momentum

Power

An airplane flies 400 m from north and then files 300 m south and then flies 1200 m upwards then net displacement is

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1200 m

1300 m

1400 m

1500 m

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