Question # 1

A weakly damped system has fairly

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sharp resonance curve

flat resonance curve

both of them

none of them

A non-inertial frame of reference is that frame of reference in which

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a = 0

a > 0 or a < 0

v = 0

none of them

To get a resultant displacement of 10 m, two displacement vectors of magnitude 6 m and 8 m should be combined

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Parallel

Antiparallel

At angle 60°

Perpendicular to each other

If the vector 5 N lies along with x-axis, then its component along y-axis will be:

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Zero

5 N

7 N

10 N

The passage of current is accompanied by a magnetic field in the surrounding space:

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Always accompanied

Sometimes accompanied

Never accompanied

Any of above

None of these

The force experienced by an electron projected in a magnetic field B with a velocity V is given by

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F=e(V x B)

F= -e(V x B)

F= e(B x V)

Both a and c

The electric flux through any surface depends upon:

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Intensity of electric field

Area of the surface

Angle between intensity and area

All of these

None of these

The current produced by moving a loop of wire across a magnetic field is called:

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Direct current

Magnetic current

Alternating current

Induced current

None of these

A medium of dielectric constant 'K' is introduced between the plates of parallel plate condenser. As a result its capcitance

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Increase k time

Decreases k times

Decreases 1/K times

Remains unchanged

Position was discovered by Carl Anderson in

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1920

1925

1928

1932

Distance covered during one vibration of an oscillating body in terms of amplitude A is:

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A

2 A

3 A

4 A

The first shell near the neucles is

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L-shell

X-shell

N-shell

M-shell

Momentum is a parameter associated with

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wave motion

particle motion

neither wave nor particle motion

none of these

An A.C. voltage is applied across the inductor. When the frequency of the voltage is increased, the current

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Decreases

Increases

Does not change

Momentarily goes to zero

An inertial frame is that frame in which

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a>0

a=0

a<0

none of these

Distance covered by a freely falling body in 2 sec will be

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4.9 m

19.6 m

29.2 m

44.1 m

In a charged capacitor the energy is stored in

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Both in positive and negative charges

Positive charges

The edges of the capacitor plates

The electric field between the plates

Time period of simple pendulum is independent of

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length

mass

acceleration due to gravity

none of them

The work performed on an object does not depend on:

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Force applied

Angle at which force is inclined to the displacement

Initial velocity of the object

Displacement

During the projectile motion, the horizontal component of velocity

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changes with time

remains constant

becomes zero

decreases with time

Battery is charged in motor cars, which is based on

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Chemical effect

Magnetic effect

Electric effect

None

The modulus of elasticity can be written as

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stress x strain

strain/stress

1/2 x stress x strain

stress/strain

Neutrons are

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positive charge

negatively charged

massless

neutral

A digital system deals with quantities which has discrete values:

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Two in number

One in number

Three in number

Four in number

None of these

The valence band of an atom in a solid

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is always empty

may or may not be empty

can never be empty

none of them

Radio telescope is used to gather information from

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Earth

Moon only

Far side of the universe

Sea water

The ideal gas law is

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P = nRT

V = nRT

PV =RT

PV =nRT

A car is moves around a circular track of radius 0.3 m at the rate of 120 rev/min. The speed v of the car is:

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38 m/sec

3.8 m/sec

0.6 m/sec

None of these

A beam of electrons is provided by an

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electron gun

Suppray

Injection

None of these

The maximum stress that a material can withstand, is known as

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plastic point

elastic limit

yield point

ultimate tensile strength

Inverter is the name given to:

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NOT gate

OR gate

NOR gate

AND gate

XOR gate

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