Question # 1

The transition from solid to liquid is actually from:

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Order to disorder

Disorder to order

Order to order

Disorder to disorder

None of these

According to the Bernoulli's equation, where the speed of the fluid is high, the pressure will be

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low

zero

high

all of them

The example of reversible process is

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an explosion

changes occur suddenly

slow compression of a gas

all of them

The induced current in the loop can be Increased by

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Using a stronger magnetic field

Moving the loop faster

Replacing the loop by a coil of many turns

All above

Both A and B

Which of the following material has smaller has life

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uranium

polonium

radium

radian

If the distance between the plates of a parallel plate condenser of capacity 10μF is doubled then new capacity will be

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5μF

20μF

10μF

15μF

In the production of beats by 2 waves of same amplitude and nearly same frequency, the maximum intensity to each of the constituent waves is

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Same

2 times

4 times

8 times

The range of wavelengths of colurs in the visible colours is

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140 nm to 456 nm

10 nm to 56 nm

410 nm to 656 nm

910 nm to 956 nm

None of these

Balmer series was identified in:

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1685

1785

1885

1985

1585

The maximum drag force on a falling sphere is 9.8 N, it weight is

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1 N

9.8 N

4.9 N

Cannot be calculated

If the distance between two charges is doubled,the force between them will become:

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Double

Half

One third

One fourth

Which one of the material is not polymer

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Glass

Natural rubber

Polyethene

Polystyrene

A uniform beam of weight 100 N is 4 m long and is supported 1.0 m from one end. A load of weight wN hangs from that ened and the beam is in equilibrium.What is the value of w?

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50 N

75 N

100 N

200 N

No body begins to move or comes to rest of itself said by

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Thomos Young

Abu Ali Sena

Newton

None of these

Unit cell has a basic structure of

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One dimensional

Two dimensional

Three dimensional

None of these

The nature of thermal radiation is similar to:

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Ultraviolet rays

Light rays

Both of them

None of them

In super conductors, once the current is established it exists

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1 day

30 days

indefinitely

None of these

A body of mass 100 g is rotating in a circular path of radius r cm with constant velocity.The work done in one complete revolution is

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100 rJ

(r/100)J

(100/r)J

Zero

The unit of Planck's constant h is same as that of

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Energy

Work

Linear momentum

Angular momentum

Glass is an example of

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crystalline solid

amorphous solid

polymeric solid

none of them

The pressure will be low where the speed of the fluid is

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Zero

High

Low

Constant

Which of the following is the most common method to obtain polarized light?

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selective absorption

reflection from different surfaces

refraction through crystals

scattering by small particles

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