Question # 1

If the roads are not banked

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A vehicle will turn over

A vehicle will not travel along with curve

Tyres and bearing are damaged

Roads will be spoiled

A man in an elevator descending with an acceleration will conclude that his weight has

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Increased

Decreased

Constant value

Zero value

Most widely used types of gas LASER are

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Neon

Argon ion

Helium

All of these

The loss of mass in a.m.u in a nuclear change can be calculated from energy involved in MeV by

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Dividing by 931

Multiplying by 931

Diving by 391

Multiplying by 391

Which one of the following is diamagnetic

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Liquid oxygen

Air

Water

Copper sulphate

An oscillator is basically an amplifier with loop gain

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Zero

Less than unity

More than unity

Infinity

If a person winds a coil of wire around a steel rod and then passes an electric current through the wire then the

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Steel rod becomes an electromagnet

Steel rod becomes hot

Wire becomes magnetized

wire becomes demagnetized

Since a diode permits the flow of current only in one direction so it can be used as.

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An oscillator

A rectifier

A phot deflector

A transistor

In microwave ovens, heating is produced by the phenomena of

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Reflection

Refraction

Damped oscillations

Resonance

What is true is real images formed by a converging lens.

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they are inverted

They are on the same side of the lens as the object

They can never be shown on a screen

They cannot be seen

The vertical component of earth's magnetics field is zero.

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At magnetic poles

At geographical poles

At magnetic equator

Everywhere

Which of the following colours of light passes through glass with minimum speed.

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Green

Yellow

Red

Violet

Which of the following form of electromagnetic energy has the highest frequency.

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X rays

Game rays

Ultraviolet waves

Infrared waves

Which statement about the image formed by a convex lens is correct.

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It is always real and eruct

It is always real and inverted

It is always virtual and erect

It may be either virtual or real

What are isotopes.

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Atoms of the same element with different numbers of neutrons.

Atoms of the same element with different numbers of protons.

Atoms which are radioactive

Atoms which have gained or lost an electron

Nuclear force as compared to electrostatic force is.

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Weaker and long range

Weaker and short range

Stronger and longer range

Stronger and short range

In compound microscope image formed by the eyepiece is

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Real

Inverted

erect

diminished

On what factor the internal energy of a thermodynamic system depend upon.

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History

State

Process

Surroundings

A Spectrum of radiation in which the quantity being studied, such as frequency or energy takes on discrete values is called.

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Continuous spectra

Band spectra

Discrete spectra

Normal spectrum

Which one of the following is a neutron absorber

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Pb

Cd

Cu

Ag

Positron are produced during.

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Annihilation

ionization

Pair production

x rays production

In which form energy in an inductance coil is stored.

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Heat energy

Light energy

Magnetic energy

Nuclear energy

The relation between horse power and watt is.

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1 hp = 546 watts

1 hp = 746 watts

1 hp = 946 watts

1 hp = 1000 watts

The rate of change of momentum of a body falling under gravity is equal to its.

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P.E.

K.E

Weight

Density

The word fluid means

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To rise

To fall

To flow

To oppose

The SI unit of modulus of elasticity us

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N m-2

N m-1

N m

N m -3

The normal adjustment the magnifying power of an astronomical telescope is.

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fe/fo

fo/fe

fo+ fe

fo -fe

Which of the following is used as a remedy for defect of hypermetropia.

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Convex lens

Concave lens

Cylindrical lens

Bifocal length lens

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

The dimensions of torque are.

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[MLT-2]

[ML-1T-1]

[ML2T-2]

[ML-2]

X-rays are good for imagining

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Tendons

Brain

Bones

Heart

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