Question # 1

For a given angle of projection, if the time of flight of a projectile is doubled, the horizontal range will increases to

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Four times

Thrice

Once

Twice

A proton is about 1840 times heavier than an electron. When it is accelerated by a potential difference of 1 KV, its kinetic energy will be

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1840 KeV

1/1840 KeV

1 KeV

920 KeV

Distance traveled by a body falling from rest in the first, second and third second is in the ration of

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1 : 2 : 3

1 : 3 : 5

1 : 4 : 9

None of the above

The maximum possible error in the reading for a meter rod with least count 1 mm is:

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0.005 mm

0.05mm

0.5mm

5.0mm

A body starting from rest covers a distance of 0.45 Km and acquires a velocity of 300 Kmh^-1. its acceleration will be

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7.71 m s^-2

0.5m s^-2

0.15m s^-2

0.092m s^-2

If the values of instantaneous and average velocities are equal, the body is said to be moving with

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uniform acceleration

uniform speed

variable velocity

uniform velocity

When an oscillatory motion repeats itself, then this type of motion is called

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vibratory motion

constant motion

fixed motion

periodic motion

The SI unit of charge is

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Ampere

Watt

Coulomb

Volt

Joule

When a body is moving with uniform positive acceleration, the velocity- time graph is a straight line. Its slope is

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zero

negative

positive

non-existing

The number of "Earth Stations" which transmit signals to satellites and receive signals fro them are

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3

24

126

200

The missing mass which is converted to energy in the formation of nucleus, is called

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packing fraction

mass defect

binding energy

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

Alternating current can induce voltage because it has a

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High peak value

Varying magnetic field

Stronger field than direct curren

Constant magnetic field

The time period of a simple pendulum is independent of its:

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Length

Mass

Value of g

Both A and B

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

Improper biasing of a transistor circuit produces

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Heavy loading of emitter current

Distortion in the output signal

Excessive heat at collector terminal

Faulty location of load line

A succession of events which bring the system back to its initial condition is called

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reversible process

irreversible process

a cycle

none of them

Op-amp has been discussed as comparator of:

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Distances

Voltages

Velocities

Magnetic fields

Both (A) and (C)

The waves which propagate through the oscillations of material particles are known as:

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Mechanical waves

Electromagnetic waves

Any of them

None of them

Diameter of the nucleus s of the order of

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10^-10m

10^-12m

10^-15m

10^-18m

In case of streamed lined flow of liquid, the loss of energy is

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Maximum

Minimum

Infinite

equal to what is in turbulent flow

A dirty carpet is to be cleaned by heating. This is in according with______law of motion.

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First

Second

Third

None of these

Change in momentum is one second is called:

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Impulse

Force

Energy

Work

An electric dipole is at the centre of a hollow sphere of radius r. The total normal electric flux through the sphere is (here Q is the charge and d is the distance between the two charges of the dipole)

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Q/4πr²

2Q/4πr²

Q.d

Zero

High energy physics is branch of physics, which deals with:

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Stars and galaxies

Sub-atomic particles

Light and sound

Molecules

Essential characteristic of equilibrium is

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Momentum equal to zero

Acceleration equal to zero

Kinetic energy equal to zero

Velocity equal to zero

When either L or C is increased, the resonant frequency of the RLC series circuit

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Increases

Decreases

Remains the same

Becomes zero

The magnetic field outside the solenoid due to current is

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strong

zero

weak

uniform

In order to get interference using two light rays

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The sources should be monochromatic and coherent

The sources should have the same frequency

Superposition should be linear

All of these

With the increase of temperature viscosity

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Increase

Decrease

Remains same

Doubles

The magnitude of chemical Effects depends upon:

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Nature of liquid

Quantity of Electricity passed through the liquid

Color of the liquid

Both (A) and (C)

Both (A) and (B)

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