Question # 1

______ plays the same role during angular motion as played by the mass in linear motion

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Torque

Angular Momentum

Moment of a force

Moment of inertia

Within each domain, the magnetic field of all the spinning electrons are

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parallel

antiparallel

perpendicular

all of them

An ideal voltmeter has:

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Zero resistance

Small resistance

Large resistance

Infinite resistance

Both A and B

When relatively simple molecules are chemically combined into massive molecules, the reaction is called:

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Fission reaction

Fusion reaction

Polymerization

Any of these

None of these

Electrons are

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positive charged

negatively charged

massless

neutral

When a large number of atoms are brought close to one another to form a solid, each energy level of an isolated atom splits into sub-levels, called

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energy bands

energy shells

states

all of them

A structure of polymeric solid is:

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An ordered structure

A disordered structure

Intermediate between order and disorder

Any of these

None of these

According to the electromagnetic wave theory of light, increasing the intensity of incident light should increase the

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number of photoelectrons

size of the photoelectrons

charge on photoelectrons

K.E of photoelectrons

When a nucleus emits an alpha particle, it atomic mass decreased by

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2

1

4

3

If a vector lies in second quadrant, than B_xand B_yare:

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-,+

+,-

+,+

-,-

A man sitting in a bus travelling in a direction from west to east with a speed of 40 km/h observes that the rain drops are falling vertically down. To the another man standing on ground the rain will appear

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To fall vertically down

To fall at an angle going from west to east

To fall at an angle going from east to west

The information given is insufficient to decide the direction of rain

The streamlines are ___________ for an ideal fluid in steady flow

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Perpendicular

Parallel

Anti parallel

Intersect each other

The weight of the body at the centre of the earth is.

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Infinite

Zero

Slightly less than that at the equator

Slightly more than that at the equator

The normal human eye can focus a sharp image of an object located anywhere form infinity to a certain point called

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Far point

Near point

distant point

None of these

The ratio of linear stress/linear strain is called

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Yong's modulus

Bulk modulus

shear modulus

modulus

The blood pressure of the person

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Decreases with age

Increases with age

Remains the same

None

The units of torque and couple are

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N-m and N-m²respectively

N-m and N

N-m^-1for both

N-m²and N-m respectively

The torque is zero when the angle between F and r is

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90^o

180^o

270^o

0^o

The dimensional formula of angular velocity is:

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M^°L^°T^-1

MLT^-1

M^°L^°T^-1

In multimode graded index fibre core and cladding has boundary

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Noticeable

No noticeable

No boundary

None of these

Which theory of gravitation is better

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Einsteins

Newtons

Lapalces

None of these

The energy that flows from a high temperature object to a low temperature object is called

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Heat

Sound

Electricity

Solar energy

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