Question # 1

Absolute zero may be regarded as the temperature of which

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Water freezes

All substances are solids

All gases become liquids

Molecular motioning a gas would ceases

The energy in electron volts necessary to remove the most loosely bound electron from the neutral atom is known as.

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Faraday energy

Wave number

Ionization Potential

Excitation potential

Generally, electrical resistivity of intrinsic semiconductors decreases with increasing.

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Pressure

Volume

Temperature

Density

On average there is no energy transfer in.

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Sound waves

Water waves

Standing waves

Mechanical waves

The separation between the plates of a parallel plate capacitor with original capacitance C is doubled its present capacitance will be.

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1/4 C

1/2 C

2C

4 C

If the average velocity of an object is zero in some time internal the displacement of the object for that intercanal will be.

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Infinite

zero

Increase

Decreasing

A body moves with velocity of 2 x 10⁶ m s-1 its relativistic mass becomes

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Zero

Unity

Double of its rest mass

Infinity

The SI unit of solid angle is

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Degree

Radian

Steradian

Candala

The process in which no heat enters or leaves the system is called.

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Isdobaric

Isochoric

Isothermal

Adiabatic

The fluid which is incompressible and non viscous is called.

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Viscous fluid

Nonideal fluid

Ideal fluid

Perfect fluid

The unit formed by combining the fundamental untis of length , mass and time.

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Absolute units

Practical units

Bse unit

Derived units

Ashes from a campfire deep in a cave show carbon -14 activity of only one eighth the activity of fresh wood. How long ago was that campfire made.

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13590 years

15190 years

17190 years

21190 years

Which quantity has dimensions different from the others.

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Energy per unit volume

Force per unit area

Angular momentum per unit mass

Pressure

The energy equivalent of 1 kg of matter a

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10^-15 J

1 J

10¹²J

10¹⁷ J

One radian is equl to

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57.3 ^o

67.3 ^o

60 ^o

87.3 ^o

When of the following colours scatters minimum.

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Blue

Violet

Yellow

Red

The net charge on a condenser is

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Zero

Q/2

2Q

Infinity

The value of electric field intensity is.

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Volt

Coulomb

Newton

Newton coulomb

If emf of the battery in a thermocouple is doubled, what is the rate of heat generation at one function.

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Remains unchanged

Becomes half

Become double

Becomes 4 times

The most abundant isotope of neon is.

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Neon -20

Neon -21

Neon -22

Both a and c

If pressure and temperature of an ideal gas is doubled and volume is halved, the number of the gas molecules.

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Become half

Remain constant

Become double

Become three times

In a projectile motion, the horizontal range depends upon.

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Initial velocity

Velocity at the highest position

angel of projection

Vertical component of velocity

Coulomb's law for the electrostatic force between two electric charges resembles the

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Law of conservation of energy

Law of conservation of mass

Newton's law of gravitation

Newton's law of motion

Light from the sun reaches the earth in

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Spherical wave fronts

Cylindrical wave fronts

Plane wave fronts

Packets

The continuous X rays spectrum is due to an effect.

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Bremsstrahlung

Breaking radiation

Holography

both a and b

The distance between any two consecutive bright or dark fringes is called.

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Wavelength

Amplitude

Fringe spacing

Wavelet

The patch followed by charge in an electric field is.

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Circular

LInear

Parabolic

Zig zag

The emf induced by the motion of a conductor across a magnetic field is called.

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Absolute potential

Motional emf

Induced emf

Terminal potnetial

A bus and a car moving with the same K.E. are acted upon by the same retarding force then the

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car will stop first

Bus will stop first

Both will stop simultaneously

Both will never stop

According to Coulomb's law what happens to the attraction of two oppositely charged objects as their distance of separation increases.

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Increase

Decrease

Remain unchanged

Cannot be determined

The rectangular coil in galvanometer is made up of.

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Bare copper wire

Insulated aluminum wire

Enameled copper wire

Enameled steel wire

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