Question # 1

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

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Energy

Mass

Momentum

Torque

The maximum height reached by a projectile with a velocity of 14 m s-1 at an angle of 30 ^owith the horizontal is.

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1.5 m

2.5 m

1 m

2 m

The magnetic induction is also called the

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Magnetic intensity

Magnetic flux

Magnetic flux density

Magnetic magnetization

when a body accelerates.

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Its direction always changes

Its mass always changes

Its velocity always changes

It falls towards the earth

The wavelength is the distance along the line of wave propagation between two successive particles which have equal

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Velocities

Phases

Amplitude

Displacements

Newton proposed his corpuscular theory on the basis on

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Newton's rings

Polarization

Dispersion of white light

Rectilinear property of light

Which of the following type of force can do no work on the particle on which it operates.

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Gravitational force

Frictional force

Centripetal force

Elastic force

Magnetic fields do not interact with

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Stationary electric charges

Stationary permanent magnets

Moving electric charges

Moving permanent magnets

When a ray light is incident at anacute angle to the boundary of the media the refracted ray.

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Bends away from the normal

Bends towards the normal

Remains undedicated

Is totally reflected

The value of mutual inductance can be increased by

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Decreasing number of turns in the coil

Increasing number of turns in the coil

Winding the coil on china clay

Winding the coil on wooden frame

Which is the light sensitive tissue in human eye

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Retina

pupil

Iris

Cornea

Since light rays are always diverged by concave lenses such lenses

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Cannot form images

Form only black and white images

From only invented image

Form only erect images

When an unbalanced external force acts on a body for a short interval of time.

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The body will experience an impulse.

The momentum of the body increases

The velocity of the body increase

The body is not effected

Which of the following are defects is lenses.

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Chromatic aberration

Spherical aberration

Astigmation

All of the above

Which of the following are examples of transverse and a longitudinal wave.

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Radio and sound waves

Radio and light waves

Light and water ripples

Light and sound waves

The centre of gravity of an object is also called.

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Centre of buoyancy

Centre of mass

Centre of the body

Torque

Most widely used types of gas LASER are

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Neon

Argon ion

Helium

All of these

When a beta particle travels though a medium it knocks out electrons from the atoms due to.

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Gravitational force of attraction

Electrostatic force of repulsion

Nuclear force

Electromagnetic induction

A diode cn be used as

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Amplifier

Rectifier

Oscillator

Transistor

The light rays which combine destructively would mean that resultant

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Intensity increases

Intensity decreases

Amplitude increases

Amplitude decreases

The diameter of a lens is called.

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Focal length

Principal axis

Optical centre

Aperture

Critical mass is the minimum mass needed for

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Fusion

H-Bomb

Chain reaction

Binding energy

To get large magnifying power of an astronomical telescope. we should have focal length of eye lens.

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Small

Large

Of any value

Infinity

For D.C. circuit the resistance can be taken as impedance with zero.

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Volt

Ampere

Phase angle

Watts

The three law of motion first published in 1687 by Sir Issac Newton in his work.

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Method of Fluxions

Optics

Principal Mathematica

Arithmetic Universalism

The proportion of crystalline to amorphous regions in a polymer depends on its

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Chemical composition

Molecular arrangement

Physical state

Chemical composition and molecular arrangement

Which of the following quantity is zero about the centre of mass of baody.

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Mass

Acceleration

Moment

Angular momentum

Two waves of the same frequency and amplitude travelling in opposites directions along the same path in the same medium produce.

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Stationary waves

Transverse wave

Longitudinal waves

Compressional waves

When an obliquely falling ray of light enters from one medium ot another it changes its path this phenomenon is called.

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Reflection

Refraction

Diffusion

Diffraction

The wave phenomenon that classifies light as a transverse wave is.

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Polarization

Diffraction

Interference

Refraction

The cloud chamber was invented by C.T.R. Wilson in

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1905

1907

1909

1911

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