Question # 1

The kinetic energy of one molecule of a gas at normal temperature and pressure will be (k = 8.31 J/mole K) :

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1.7 x 10³J

10.2 x 10³J

3..4 x 10³J

6.8 x 10³J

The magnetic field inside a solenoid can be increased by:

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Increasing n

Decreasing I

Increasing I

By using iron core within solenoid

All correct except (B)

Recent studies of ferromagnetism have shown that there exists in ferromagnetic substances small regions called

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tiny regions

domains

vectors

none of them

Crests and troughs are formed in:

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Longitudinal waves

Transverse waves

Both of these

None of these

Battery is charged in motor cars, which is based on

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Chemical effect

Magnetic effect

Electric effect

None

Referring to the above figure, we can say that of all the elements, the most stable element is

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Phosphours

Iron

uranium

Lithium

Bismuth

The velocity gained by the fluid in falling through the distance (h_{1 - h}_{2) under the action of gravity is equal to the speed of the action of gravity is equal to the speed of the}

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orifices

efflux

fluid

none of them

The electrons in the outermost shell of an atom are called

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core electrons

valence electrons

high energy electrons

none of them

Acceleration of the mass at any instant is given by

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a=k/m x

a= - m/k x

a = - k/m x

a=m/k x

When an electron enters in a magnetic field right angle to its motion, the magnitude of its velocity will be

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changed

zero

unchanged

none of these

The smooth or steady stream-line flow is know as

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Laminar flow

Turbulent flow

Both a and b

None of the above

In Newton,s rings apparatus, we also use

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Spectroscope

Telescope

Microscope

Turn table

The work done in placing a charge of 8 x 10^-18C on a condenser of capacity 100 μ F is

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32 x 10^-32 j

16 x 10^-32j

3.1 x 10^-26j

4 x 10^-10j

The relative permitivity ∈_r for teflon is

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2.1

2.4

2.9

3.0

In Young s experiment the distance between two adjacent fringes for blue light is than that for green light

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Lesser

Greater

Equal

Lesser if distance between source and screen is large

The dimensions [ML²T^-2] refers to the quantity

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Work

Spring constant

Torque

Both A and C

The time rate of change of displacement is called

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Speed

Velocity

Acceleration

None of these

Is Boyle's law is applicable, to the isothermal process

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No

Yes

Some what applicable

None of these

The low blood pressure is known as

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Diastolic

Systolic

Low blood pressure

None of these

The relation Cp > Cv by an amount equal to

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Gas constant

Universal gas constant

Both

None of these

When a stress changes length, it is called the

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compressional stress

tensile stress

shear stress

any one of them

Work done by a body when it covers some distance in suitable direction, may be

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Positive

Negative

Zero

All of these

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