Question # 1

Which one of the following pairs does not have the same dimensions.

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Force and weigfht

Pressure and stress

Capacitance and resistance

Energy and work

Work function is generally expressed in.

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Electron volt

Joules

Newtons

Gauss

The circular motion of a particles with constant speed is.

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Periodic and SHM

Periodic but not SHM

SHM and not periodic

Neither periodic nor SHM

Significant motion for the molecules of a monoatomic gas is.

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Rotatory

Vibratory

Translatory

Random

Which liquid can flow easily.

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Traacle

Pitch

Ether

All flow with same rate

The ration of Universal gas constant and Avogadro's number is called.

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Equilibrium constant

Velocity constant

Boitzmann's constant

Gravitational constant

The resistance offered by one cubic meter of a substance is known as.

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Reactance

Conductance

Conductivity

Resistivity

The gravitational strength on the surface of moon is 1.6 N kg-1 What will be the mass and weight of an object respectively on the surface of the moon.

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10 kg , 1.6 N

10 Kg , 16 N

16 Kg, 10 N

16 kg, 160 N

Below which temperature gas can be liquified by increasing its pressure.

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Natural temperature

Boyle temperature

Critical temperature

Absolute zero

When stationary waves are formed in a closed organ pipe.

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A node is formed at the closed end of the pipe

An antinode is formed at the closed end of the pipe

Each particle at the node experience zero acceleration

The maximum pressure occurs at the nodes

Simple harmonic motion may be assumed as a projectio of uniform circular motion along a

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Diagonal

hypotenuse

Diameter

Radius

The working of cloud chamber is based in the presence of.

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Super heated vapours

Liquid

Super saturated vapors

Unsaturated vapours

The half life of a radioactive substance as compared to its mean lif eis.

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30%

50%

70%

90%

When a newton's right interference pattern a viewd from above by means of reflected light , the central spot is

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Multicoloured

Alternately white and black

Bright

Dark

Sound wave in air are

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Longitudinal waves

Transvers waves

Electromagnetic waves

Matter waves

The magnetic flux density at the centre of a long solenoid is dependent on.

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The number of turns per unit length of the silenced

The volume of the solenoid

The diameter of each turn of the solenoid

All of above

The phenomenon in which a photon of frequency 'f' is scattered by an electron and the scattered photon has frequency f <f is known as.

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Pair production

Pair annihilations

Photoelectric effect

Compton's effect

Parallel rays of light are focused by a thin convex lens.A thin concave lens of the name focal length is then joinjed to the convex lens The focal point will.

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Shift to infinity

shift towards the lens by a small distance

shift away from he lens by a small distance

Remain at its original position

When a dielectric material is placed in an electric field it

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Conducts

Exhibits an electrical discharge

Become polarized

Undergoes electrolysis

The SI unit of angular velocity is.

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cm s-1

rad s-2

cm s-2

rad s-1

What is the part of a simply D.C. motor that reverses the direction of current through the coil every half cycle.

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Armature

Brushes

Commutator

Slip rings

The ratio of specific heat capacity to motor heat capacity of a body

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Is a universals cantante

Depends upon the mass of the body

Depends upon the molecular weight of the body

Is dimensionless

The phenomenon of interference comes about because waves obey

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the impulse momentum theorem

An inverse square law of intensity

The principle of reciprocity

The principle of super position

The possible values of principal quantum number are.

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only zero

0,1,2,...................7

1,2,3........................8

2,3,4,6...............10

The corss product of two vectors is zero when they

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Are parallel to each other

Are perpendicular to each other

Are at an angle of 120 ^o

Both are equal

In a R-L-C series circuit, when the frequency of A.C. source is high the circuit is.

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R-L Circuit

R-C circuit

L-C circuit

R-L or R-C

Who explained Browian movement quantitatively.

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Issac Newton

albert Einstein

James Maxewll

Robert Brown

Which of the following quantity is defined in terms of the rate of change of electric displacement field.

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Conventional current

Electronic current

Displacement current

Pulsating current

A charge less region which separates p-type and n-type semiconductors in a p-n junction is known as.

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Polar region

Null region

Depletion region

Neutral region

Select the one that is not a donar

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P

AS

Sb

In

The combined resistance of two identical resistors, connected in series is 18 Mega Their combined resistance in a parallel arrangement will be.

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2 Mega

4 Mega

8 Mega

12 Mega

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