Question # 1

Glass is an example of

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crystalline solid

amorphous solid

polymeric solid

none of them

Rate of change of momentum is called

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Impulse

Force

Torque

Momentum

Method "lamp and scale arrangement" used to measure the

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angle of deflection

restoring torque

magnetic field strength

current

When a bicycle is in motion, the frictional forces exerted by the ground are

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In the forward direction on both the wheels

In the backward direction on both the wheels

In the forward direction on the front wheel and the backward direction on the rear wheel

In the backward direction on the front wheel and the forward direction on the rear wheel

The induced current in the loop can be increased by:

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Using a stronger magnetic field

Moving the loop faster

Replacing the loop by a coil of many turns

All above

Both (A) and (B)

An aircraft is moving with a velocity of 300 ms^-1. If all the forces acting on it are balanced, then

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It still moves with the same velocity

It will be just floating at the same point in space

It will be fall down instantaneously

It will lose its velocity gradually

During the negative half-cycle of the half-wave rectification, the diode

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does not conduct

conducts

either of these

none of these

If the object is placed at 12 cm distance from a convex lens of focal length 6 cm, then we get an image of ____ as that of object:

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Double the size

Same size

Half the size

None of these

The volume of universal gas constant R is:

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8.314 J/K mole K

8314 J/K mole K

8.314 J/mole K

None of these

A car battery has e.m.f 12 volt and internal resistance 5 x 10^-2ohm. If it draws 60 ampere current, the terminal voltage of the battery will be

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5 volt

3 volt

15 volt

9 volt

Nucleon means:

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Only electrons

Only neutrons

Only protons

Both (A ) and (C)

Both (B) and (C)

The body oscillates due to _____ accelerates and overshoots the rest position due to______,:

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Applied force, inertial

Restoring force, friction

Frictional force, inertial

Restoring force, inertial

Two forces each of the magnitude F act perpendicular to each other. The angle made by the resultant force with the horizontal will be:

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30°

45°

60°

90°

Bernoulli's equation is based upon law of conversation of

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mass

momentum

Energy

None

The time taken by light to travel from moon to earth is:

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80 sec

500 sec

1.802 X 10⁴sec

Aerophysics

A (100 W , 200 W) bulb is connected to a 160 V power supply. The power consumption would be

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64 W

80 W

100 W

125 W

Certain light of wavelength 600 nm is used to view an object under the microscope. If the aperture of its objective is 1.22 cm, then the limiting angle of resolution will be:

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6 x 10^-5rad

7 x 10^-5rad

8 x 10^-5rad

None of these

The rate at which the free electrons pass through any section of a metallic wire from right to left is:

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Greater than the speed at which they pass from left to right

Less than the speed at which they pass from left to right

The same speed at which they pass from left to right

Any of above

None of them

Unit of viscosity is:

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Kg m^-1sec^-1

N s m^-2

J s m^-3

All of these

If you are moving at relativistic speed between two points that are a fixed distance apart, then the distance between the two points appers

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larger

shorter

equal

none of these

Fraction of the decaying atoms per unit time is called

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decay atom

decay element

decay constant

decay

Blood is an

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Compressible fluid

incompressible fluid

hard

none of them

The current that flows through the coil of a motor causes:

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Its shaft to revolve

Its brushes to rotate

Motor to move

Its shafts to rotate

None of these

Michael Faraday is known by his work on

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Nuclear strong force

Gravitational force

Nuclear weak force

Electric force

None of these

The direction of a vector in space requires:

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X-axis

X and Y-axes

XYZ axes

Y and Z-axes

In a metal, the valence electrons are:

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Attached to individual atoms

Not attached to individual atoms

Free to move within the metal

Both A and B

Both A and C

Bernoulli's equation is applicable for

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turbulent flow

streamline flow

both (a) and (b)

all kinds of flows

At low speeds, the drag force is

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proportional to speed

inversely proportional to speed

not simply proportional to speed

none of them

Electric field lines emerge from the charges in

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One dimension

Two dimensions

Three dimensions

Four dimensions

None of these

A high temperature, the proportion of shorter wavelengths radiation, emitted by the body

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decreases

first increases then decreases

increases

any one of them

Which one is the least multiple

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Pico

Femto

Nano

Atto

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