Question # 1

In case of longitudinal waves the individual particles of the medium move.

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In circles

In ellipses

Parallel to wave propagation

Perpendicular to wave propagation

Compton scattering experiment seemed to indicate that radiation had

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Wave nature

Particle nature

Wave particle nature

X-rays nature

In an induction coil, the secondary emf is.

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Zero at the break of the circuit

Zero during make of the circuit

Very high during make of the circuit.

Very high during break of the circuit

On which factor cut off wavelength of X-rays coming from a Coolidge tube depends upon.

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Target material

Accelerating voltage

Filament temperature

Separation between target and the filament

For which of the following objects is the centre of mass equidistant from every point on its surface

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An unsharpened pencil

A gramophone record

An egg

A table tennis ball

The locus of all points in the same state of vibrations are known as.

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half period zone

A wavefront

A half wave zone

A full wave zone

The angular momentum of a body about a fixed point is conserved if its velocity

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Decreases

Increases

Remain the same

Becomes zero

Angular frequency time period and frequency in SHM do not depend upon.

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Mass

Force constant

Amplitude

All of these

The apaceing between fringes is a Young's double slit pattern will be increased, if we decrease the

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Wavelength of the souce light

Distance from slite to screen

Width of the slits

Separation of the slits

When a following field is governed by Maxwell's equations.

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Electrodynamics

Optics

electric circuits

All of these

Beta decay may occur by

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Beta minus

Beta Plus

Electron capture

All of these

The permeability of air is

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0.5

zero

infinity

Unity

The velocity of the wave could be increased by

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Reducing the amplitude

Decreasing the frequency

Increasing the period

Stretching the spring more

Persistence of vision is the phenomenon of the eye by which an afterimage is thought to persist for approximately one twenty faith of a second on the.

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Retina

Heart

Mind

Liver

The nuclear model of the atom was derived partly from experiments involving the scattering of alpha particles performed by.

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Chadwick

Rutherford

Anderson

Einstein

Which particle has zero charge and zero rest mass.

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Neutron

Proton

Electron

Photon

How much large is the proton mass than the electron mass.

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1536

1636

1736

1836

The ablate of rays of different colours to converge a single point sifter refraction though a convex lens is called.

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Come

Distortion

Spherical aberration

Chromatic aberration

Which of the following is the cause of failure of a lens to form a sharp and district image of a white object.

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Spherical aberration

Chromatic aberration

Distortion

Astigmatism

The pulsating outflow of blood from the heart by alternate systole and diastole is smoothed out by

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The blocking action of the heart's valves

The viscosity of the blood

The effect of gravity

the elasticity of the blood vessels

The rate of which blood is delivered to the patient in a transfusion depends on

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Hight of the blood level in the suspended container

Volume of the container

Shape of the container

Material of the container

a 2,000 kg heavy truck travelling at 36 km h-1 strikes a tree and comes to a stope in 0.1 s The average force on the truck during the crash is.

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2 x 10² N

2 X 10³N

2 X 10⁴ N

2 X 10³ N

who gave the law of equipartition.

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Maxwell

Carnot

Claussius

Boltzmann

The temperature scale based upon triple point of water was given by

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Rumford

Carnot

Kelvin

Celsius

On which property of lens, longitudinal chromatic aberration depend upon

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Resolving power

Dispersive power

Magnifying power

Radius of curvature

Gases have

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Fixed shape

Fixed volume

Fixed shape and volume

No fixed shape and volume

The SI unit of momentum is.

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kg m s-2

kg m2 s-2

kg m s-1

kg s-1

Simple harmonic motion may be assumed as a projectio of uniform circular motion along a

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Diagonal

hypotenuse

Diameter

Radius

at room temperature the p.d. between the two sides of depletion region for silicon is of the order of.

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0.3 V

0.5 V

0.7 V

0.9 V

The Lenz's law is also a statement of the law of conservation of.

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Energy

Mass

Momentum

Torque

On which parameter the time required to charge a capacitor depends upon.

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magnitude of charge

Applied potential difference

Capacitances

Time constant

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