Question # 1

For a prism of particular and given wavelength the resolving power varies as

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First power of lens of its base

Square of inverse length of its base

Increases of length of its base

Cube of the length of its base

A solid object is

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Not elastic below the elastic limit

Not elastic above the elastic lime

Elastic below the elastic limit

Not elastic at all

If the image is virtual then its distance from the lens is taken.

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Positive

Negative

Double

Half

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

Which of the following is nearly monochromatic light.

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Light from fluorescent tube

Light from neon lamp

Light from sodium lamp

Light from simple lamp

The bending of light when it enters a medium

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Reflection

Refraction

Diffraction

Total internal reflection

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

The convincing evidence of the wave nature of electrons was provide by.

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Stefan

Rayleigh

Davision and Germer

Balmer

In the experiment of production od x rays electrons are accelerated towards the anode by

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Thermionic emission

Potential difference

Breaking potential

Cut of currrent

The strength of photo electric current depends upon.

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Intensity of incident light

Frequency of incident light

Angle of incident light

Distance between anode and cathode

The primary purpose of using a large aperture objective in a telescope is to produce

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Brighter image

Larger image

Wider field of view

Smaller image

x-rays can cause fluorescence in materials such as

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Cadmium

Zinc sulphide

Palatinocyanide

All of these

X-rays are a part of electromagnetic spectrum and are characterized by frequencies higher that those of.

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Infrared radiation

Ultraviolet radiation

Far ultraviolet radiation

Far infrared radiation

The best shield against Gama rays would be of

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Heavy water

Aluminium

Iron

Lead

Which one of the following telescopes has the least length when set for parallel rays.

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Astronomical telescope

Galileo's telescope

Terrestrial telescope

Reflecting telescope

Which of the following properties of sound is affected by change in air temperature.

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Amplitude

Intensity

Frequency

Wavelength

The perceived fundamental frequency of a sound is called.

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Pitch

Timber

Loudness

Wavelength

The gravitational potential inside a hollow spherical shell

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Increases from zero at the centre to the maximum value at the surface

Is zero throughout the inteior

Decreases from the centre

Is uniform throughout the interior

Which of the following causes the deflection of Alpha particles when they re passed through a thin foil.

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Attraction of nucleus

Collision with nuclei

Interactions with electrons

Electrostatic repulsion by the nucleus

The dimensional formula for torque is identical to.

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Kinetic energy

Pressure energy

Moment of force

All of the above

Which of the following will not acceleation.

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The moon in its orbit

A tennis ball rebounding from ground

A store in free fall

A car in which the engine thrust is equal to the friction

The bunding energy per nucleon for iron is.

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zero

Maximum

Negative

Minimum

The minimum angle of incidence for which total internal reflection can occur is called.

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Right angle

Acute angle

Critical angle

Obtuse angle

Which of the following is an example of continuous spectra.

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Black body radiation spectrum

Molecular spectra

Atomic spectra

grating spectrum

Charge to mass ration of an electron is determined by using the relation.

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e/m = B/rv

e/m = r/vB

e/m = V/Br

e/m = v/r

An electric motor could be used as a

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Battery

Capacitor

Dynamic

Transofrmer

Which of the following is not electromagnetic .

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x-rays

Gama rays

Cathood rays

Infrared rays

A diode cn be used as

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Amplifier

Rectifier

Oscillator

Transistor

A transistor can be used as

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Oscillator

Amplifier

Switch

Both a and c

Electromagnetic waves transmit.

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Energy only

Momentum only

Energy and momentum

Light

Ebers-Moll model describes the working of a

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BJT

FET

MOSFET

UJT

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