Question # 1

Number of supplementary units are

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Three

Two

Seven

Five

Maximum height of a bullet when fixed at 30 with horizontal is 11 m. Then height when it is fired at 60° is

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22 m

6 m

33 m

7.8 m

Avo-meter is used of measure the

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current, voltage

voltage, resistance

resistance, current

current, voltage and resistance

Bernoulli's equation is applicable for

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turbulent flow

streamline flow

both (a) and (b)

all kinds of flows

Radian is defined as the angle subtended at the center of a circle by an arc of:

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Length equal to its diameter

Length equal to its radius

Any length

None of these

The basic circuit elements of A.C circuit are

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Resistor

Inductor

Capacitor

All the three

When small number of atoms from some other suitable element is added to the semi-conductor material, then this process is known as

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impurification

adding

doping

extrinsivity

The magnitude of induced emf depends upon the

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Rate of decrease of magnetic field

Rate of change of magnetic field

Rate of increase of magnetic flux

Constancy of magnetic field

None of these

Fidelity refers to

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Reproduction of original sound

Reproduction of original image

Reproduction of music

Reproduction of a CD from original copy

For addition and subtraction purposes, absolute uncertainties are:

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Added

Subtracted

Multipiled

Divided

First law of thermodynamics is consequence of conservation of

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Work

Energy

Heat

All of these

The velocity of a body at any instant of its motion is known as

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average velocity

instantaneous velocity

uniform velocity

none of them

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

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Direction

Force applied

Path followed by the body

Power

Which of the following represents an electric current?

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C^-1

CS^-1

J.S^-1

dynes^-1

The value of resistivity is the least for:

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Copper

Aluminimum

Silver

Tungsten

Iron

The SI unit of capacitance is

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Farad

Henry

Ohm

Volt

Diameter of the atom is of the order of

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10^-10m

10^-12m

10^-15m

10^-9m

The perpendicular distance from the axis of rotation to the line of action of force is called:

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Moment arm

Moment of a force

Torque

Non of these

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

When a source of light isat very large distance,the shape of wavefront is:

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Spherical

Cylindrical

Plane

None of these

Laplace formula is derived from

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Isothermal change

Adiabatic change

Isobaric change

None of these

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

The emission of electrons from a metal surface when exposed to light of suitable frequency is called the

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pair production

Compton effect

photoelectric effect

relativity

A charge of 0.1 c accelerated through a potential difference of 1000V acquires kinetic energy

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200 J

100 J

1000 J

400 J

Electron is a particle whose mass is:

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Greater than that of a proton

Smaller than of a proton and greater than mass of neutron

Smaller than that of proton or neutron

Greater than that of an atom

Two samples A and B of a gas initially of the same temperature and pressure are compressed from a volume V to a volume V/2 such that A is compressed isothermally and B adiabatically. The final pressure

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A greater than than of B

A is equal to that of B

A is less than that of B

A is twice the pressure of B

In velocity of a particle at an instant is 10 m/s and after 5s the velocity of the particle is 20 m/s. The velocity 3s before in m/s is

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8

4

6

7

In the same medium, velocity of the wave:

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Goes on increasing

Remains constant

Goes on decreasing

None of these

What will be the ratio of the distance moved by a freely falling body from rest in 4th and 5th seconds of journey?

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4 : 5

7 : 9

16 : 25

1 : 1

The value of relative permittivity of different dielectrics are

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Equal

Different

Greater than one

Smaller than one

Both B and C

The tidal energy is produced due to rotation of Earth relative to:

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Moon

Sun

Oceans

Water

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