Question # 1

One radian is:

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Greater than one degree

Less than one degree

Equal to one degree

None of these

In case of two identical charges placed certain distance apart, the electric field lines are:

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Straight lines

Sine curves

Curved

Both (A) and (B)

None of these

The disorder in the system increases due to the

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removal of heat

addition of heat

removal or addition of heat

none of them

Acceleration produced in a body by a force varies

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inversely as the applied force

directly as the applied force

directly as the mass of the body

none of them

The pointer of a magnetic compass:

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Is affected only by permanent magnets

Align itself parallel to the applied magnetic field

Vibrates in the magnetic field of the current

Aligns itself perpendicular to the magnetic field

Both (C) and (D)

Avo-meter is used of measure the

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current, voltage

voltage, resistance

resistance, current

current, voltage and resistance

An isochoric process is one which take place at

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Constant internal energy

Constant entropy

Constant volume

Constant pressure

When a charged particle passes through matter, it produces ionization, this effect is used in

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fission reaction

reactor

radiation detector

fusion reaction

The emission of radiations take place in elements, having charge number greater than

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109

82

69

52

The closed loop gain of the non-inverting amplifier is given by

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G = R₂/R₁

G = -R₂/R₁

G = 1 - R₂/R₁

G = 1 + T₂/R₁

Weber is a unit of

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magnetic flux

magnetic filed intensity

magnetic induction

magnetic flux density

The velocity of a projectile is maximum

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at the point of projection

just before striking the ground

at none of them

at both of them

X-ray are also known as

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Roentgen rays

Maxwell rays

Plank range

Einstein rays

For addition and subtraction purposes, absolute uncertainties are:

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Added

Subtracted

Multipiled

Divided

Each atom in a metal crystal vibrates about a fixed point with an amplitude that:

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Decrease the rise in temprature

Is not affected by rise in temprature

Increase with rise in temprature

Both (B) and (C)

None of these

Electrostatics is the branch of physics which deals with the study of electro charges:

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At rest

At rest under the action of electric forces

In motion under the action of electric forces

In motion

At rest under the action of nuclear forces

1 amu is equal to.

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1.66 x 10^-24kg

1.66 x 10^-19kg

1.66 x 10^-24kg

1.66 x 10^-27kg

Which of the following does not obey ohm's law?

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Copper

Al

Diode

None

The speed of a pendulum is measured to be 3.0 s in the inertial reference frame of the pendulum. What is its period measured by an observer moving at a speed of 0.95 c with respect to the pendulum

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2.9 s

3.0 s

6.6 s

9.6 s

The work done in moving a body between two points in a conservation field is independent of the:

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Direction

Force applied

Path followed by the body

Power

Absolute motion cannot be detected

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in its own frame of references

in a different frame of references

both in its frame and different frame of references

none of these

The path described by a projectile is called its

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orbit

trajectory

range

distance

The value of threshold frequency for different metals is

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different

same

may be different or may be same

none of these

In SHM, the acceleration is ______ when velocity is _____:

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Zero, smallest

Smallest, zero

Zero, zero

Zero, greatest

At the constant temperature, if the value of a given mass of a gas is double, then the density of gas becomes:

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Double

Remains constant

Half

None of these

The direction of induced current is always so as to oppose the cause which produces it. This is

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Lenz's law

Ampere's law

Faraday's law

Coulomb's law

None of these

The information from far side of the universe are gathered by:

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Radio telescope

Microscope

Telescope

Spectro scope

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

Huygen's principles states that:

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Light travels in straigth line

Light has dual nature

Either of these

None of these

If the value of galvanometer constant k = C/BAN is made small, the galvanometer can be made

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Sensitive

Accurate

Stable

None of these

Second's pendulum is the pendulum whose time period is:

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1 second

2 second

3 second

None of these

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