Question # 1

A mercury in glass thermometer and thermocouple thermometer are both calibrated using the same fixed point of 0 oC and 100 oc when both temperature are used to measure the temperature of a body the temperature measured on both thermometers will be exactly the same

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For all temperatures between 0 oC and 100 o C only

Only are the fixed points

For all temperatures at all times

When converted to the Kelvin scale

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

Kinetic and potential energies are

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Not inter convertible

Inter convertible

Two forms of torque

Not related with each other

The unit of magnetic induction is.

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weber -metre

weber -metre 2

weber-meter-2

weber-metre-1

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

Magnetic effect of current was discovered by

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Faraday

Fleming

Oersted

Ampere

The value of voltage or current that exists in a circuit at any instant of time measured from some reference point is its.

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Peak value

Peak to peak value

Instantaneous value

Average value

Gases have

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Fixed shape

Fixed volume

Fixed shape and volume

No fixed shape and volume

Andrews isothermal helps to messure

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Boiling point

Boyle's temperature

Temperature of inversion

Critical temperature

Below which temperature gas can be liquified by increasing its pressure.

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Natural temperature

Boyle temperature

Critical temperature

Absolute zero

Transistor stands for

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Transfer of resistance

Transfer of current

Transfer of power

Transfer of voltage

92.65 is round off as

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92.6

93.00

92.7

None of these

Alternating current generator consists of a coil and a pair of.

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Split rings

Slip rings

Metal rings

Copper rings

Which of the following is defined as the amount of heat required to raise the temperature of 1 g of water by 1 ^oC

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Joule

BTO

Electron volt

Calorie

The Inner electrons in heavy atoms can be disturbed and dislodged by.

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X rays

Alpha particle

Beta particles

gama particles

The decay process in which an unstable nucleus splits into two fragments of comparable mass is known as.

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Nuclear fission

nuclear fusion

Radioactivity

Carbon dating

A positive and a Negative charge are initially 4 cm apart When they are moved closer together so that they are now only 1 cm part the force between them is.

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4 times smaller than befor

4 times larger than before

8 times larger than before

16 times larger than before

Low frequency response of an amplifier is mainly limited by.

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Biasing configuration

Coupling capacitor

By pass capacitor

Input impedance

The phenomenon of regular refraction of light illustrates taht.

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Light is reflected in one direction only

Light is reflected through a range of different angles

Light is refracted in one direction only

Light is refracted through a range of different angles.

The internal energy of an isolated system

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Is zero

Keeps on changing

Remains constant

Cannot be judged

The resolving power of an instrument increases as the wavelength of light used decreases, the magnifying power will

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Remain the same

Increases

Decreases

Have no relation between the two

Which of the following phenomenon is caused by the different speeds of light in differed optical media.

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Reflection

Refraction

Diffraction

Total internal reflection

There are how many modes of operations of a BJT.

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2

3

4

5

Which term is used for the persistence of sound in a hall.

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Resonance

Acoustics

Symphony

Reverberation

The advantage of electron tube over a transistor is.

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Low consumption of power

Low input impedance

Its high efficiency

Its high gain

The energy following per second through a unit area held perpendicular to the direction of wave is.

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The loudness of the sound waves

The pitch of the sound waves

The intensity level of sound waves

The intensity of sound waves

If the vector sum of all the torques is zero then

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1st condition is satisfied

2nd condition is satisfied

Centre of mass is lowered

Gravity becomes zero

Which italian inventor is credited with describing and sketching the first ideas for contact lens in 1508

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Galileo

Leonardo da vinci

roger Bacon

Hans Lipperahey

The working of cloud chamber is based in the presence of.

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Super heated vapours

Liquid

Super saturated vapors

Unsaturated vapours

The average K.E. of the molecules of an ideal gas in a closed rigid container is increased by a factor of 4 What happen to the pressure of the gas.

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It remains the same

It increases by a factor of 2

It increases by a factor of 4

It increases by a factor of 8

The process of pair production will take place if the energy of photon is greater than

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0.21 MeV

0.51 MeV

1.51 MeV

1.21 MeV

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