Question # 1

Which of the following is invariant under Galilean transformation.

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Velocity

Impulse

Momentum

Distance

The gas thermometer is taken as the primary standard because.

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Thermometers are easily reproducible

Readings can be accurately taken

No correction are necessary

It produces he thermodynamic scale

Significant motion for the molecules of a monoatomic gas is.

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Rotatory

Vibratory

Translatory

Random

Which force pushes up a body in fluid

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Thrust

Lift

buoyant

Pressure

The necessary condition for nuclear fusion is.

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High temperature and high pressure.

Low temperature and high pressure

Low temperature and low pressure

High temperature and low pressure.

An example of continuous spectrum is.

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Black body radiation spectrum

Molecular spectra

Atomic spectra

All of the above

When damping is small amplitude of vibrational resonance will be

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small

Large

Infinite

Un changed

The ration of intensity of magnetization to the magnetic force is known as.

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Parmeability

Magnetic induction

Magnetic intensity

Magnetic susceptibility

When a fluid in a cylinder expands through a distance 'd' against a piston of area 'A' which is exerting a constant pressure 'P' the work done is equal by.

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PAD

PA/d

Pd/A

Pd/A2

The distribution of electrical charge i an object caused by teh influence of nearby charges is called.

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Electric potential

Electrostatic induction

Electric flux

Electric dipole moment

For maximum range angle of projection of the projectile should be

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45 ^o

90^o

120 ^o

180 ^o

Identify the irreversible process

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Explosion of a bomb

Slow expansion of a gas

Slow compression of a gas

Slow compression of an eleastic spring

The ratio of specific heat capacity to motor heat capacity of a body

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Is a universals cantante

Depends upon the mass of the body

Depends upon the molecular weight of the body

Is dimensionless

Wave motion in air consist of

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Longitudinal waves

Transverse waves

Seismic waves

Polarized waves

The period of a geostationary satellite is.

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32 hours

72 hours

48 hours

96 hours

For total internal reflection the light rays enter

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From rarer to denser medium

From, denser to rarer medium

Medium of same refractive index

At an angle 90 ^o

A gallium atom is.

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Monvalent

Diavalent

Trivalent

Pentavalent

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 law states that two given samples of an ideal gas at the same temperature pressure and volume contain the same number of molecules.

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Charles law

Avogadro's

Boyles law

Boizmann law

The half life of radium -226 is

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1620 years

45 x 10⁹ years

3.8 days

23.5 minutes

In four stroke cycle the crank makes

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One complete revolution

Two complete revolutions

three complete revolutions

Four complete reveolutions

Thermocouple is combination of.

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Thermocouples

Capacitors in parallel

Resistors in series

Ammeter and voltmeter

The force that bonds protons and neutrons together int he nucleus despite the electrical repulsion of the protons is called.

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Molecular force

Nuclear force

Atomic force

Gravitational force

Who proposed the thermodynamic scale of temperature.

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Saadi carnot

Lord Kelvin

Sir james dewar

Gabriei fahrenheit

In an accelerated or non - inertial frame of reference the weight of the body depends upon.

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Acceleration of the frame of reference

Velocity of the body

Momentum of the body

Velocity of the frame of reference

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

The reluctance of a body to start moving is called.

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Mass

Weight

Force

Inertia

If a ray of light in glass in incident on an air surface at an angle greater than the critical angle, the ray will

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Refract only

Reflect only

Partially refract and partially reflect

Diffract only

The electrons behave as wave because.

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They can be diffracted by a crystal

They can be defecting by magnetic field

They can be deflecting by electric field

they can produce ions in gases

Which of the following is not SI base unit.

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kilogram

Ampere

Coulomb

Mole

The direction of induced e.m.f in a circuit is in accordance with conservation of.

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Mass

Charge

Momentum

Energy

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