Question # 1

In case of stationary waves every particle of the medium has fixed

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Velocity

Displacement

Amplitude

Phase

The phenomenon in which a charging current in one coil induces an emf in another coil is called.

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Induced current

Induced emf

Self induction

Mutual induction

In an Isolated system , total energy of the vibrating's mass and spring is

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Low

High

Constant

Variable

How positives feedback will effect an amplifier.

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Increases the voltage gain

Decreases the voltage gain

Imitates oscillation to occur

Damaged it

In which reaction two or more small light nuclei nuclei come together or fuse to form a large nucleus.

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Radioactivity

Radioactivity dating

Nuclear fusion

Nuclear fission

What is the type of corrective lens used to correct or enhance the vision is only one eye.

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Axicon

Monocle

Zoom lens

Camera lens

An electric current in conductors is due to the flow of.

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Positive ion

Negative ion

Positive charges

Free electrons

In which thermodynamic process enthalpy of the system remains constant.

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Isenthalpic process

Isolated process

Isobaric process

Isochoric process

Supplementary units radian and steradian were established for

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Density

Viscosity

electric intensity

Geometrical quantities

Such an inductor coil which does not consume energy and is often employed for controlling A.C. without consumption of energy is called.

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Reactance

Choke

Impendence

Diode

The ratio of inertial mass to gravitational mass is.

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1

0.5

2

3

The air plane lift is based on

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Archimedes principle

Law of conservation of momentum

Bernoulli's principle

Law of conservation of energy

The average amount of energy transported by a wave per unit area per unit time is termed as

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Wave speed

Wave intensity

Wavelength

Wave amplitude

The real depth of a swimming pool is 2 m What is the apparent depth of the pool if the refractive index of water is 1.33

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1.0 m

1.5 cm

2.0 m

2.5 m

The wave nature of light was proposed by

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Thomas Young

Fresnel

Maxwell

Huygen

When a solid is melting the temperature remains constant even through heat is being supplied because the

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Heat is being used to break up the intermolecular bonds

Solid is not absorbing any heat

Molecules are moving faster

Molecules are farther a part

The law of gravitation was introduced by

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Huygen

Boyle

Newton

Pascal

The temperature which is the same in ^oC and ^oF is.

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-20

-40

20

40

Which one of the following quantities is conserved in a nuclear reactor.

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Energy only

Mass only

Momentum only

Mass energy and momentum

In a charged capacitor the energy resides

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In the negative plate

In the positive plate

In the field between the plates

Around the edge of the plates

The path of Gama rays in Wilson cloud chamber is

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Irregular

Dense and straight

Thin and continuous

Thin and discontinuous

Who gave the idea of matter wave.

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De Broglie

Planck

Einstein

Huygen

In the equation P = IV cos Theta Cos theta is known as

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Phase angle

Liming angle

Phase

Power factor

In a R-L-C series circuit, when the frequency of A.C. source is high the circuit is.

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R-L Circuit

R-C circuit

L-C circuit

R-L or R-C

a spectrometer is used to study

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Spectrum

Waveform

Interference

Diffraction

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 phenomenon of Compton's effect process that right has

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Wave nature

Particle nature

Dual nature

Corpuscular nature

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

Which of the following forms of electromagnetic energy has the longest wavelength.

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Microwaves

Radio waves

Infrared waves

^{Visible light}

The change in wavelength of an X-ray when scattered from an electron is called.

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Compton shift

Doppler shift

Stefan's law

Fraunhofer lines

Original source of biomass is.

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Stars

Moon

earth

Sun

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